{"title":"Tungaloy Grooving Inserts Collection | TungCut \u0026 TetraForce-Cut","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy Grooving \u0026amp; Parting Solutions\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eTungCut \u0026amp; TetraForce-Cut | Unmatched Stability | Precision Width Control\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhich grooving insert provides the best chip control for deep internal face grooving?\u003c\/h2\u003e\n\u003cp\u003ePrecision grooving requires more than just a sharp edge; it demands specialized chip management to prevent \"re-cutting\" and tool failure. The \u003cstrong\u003eTungaloy Grooving Insert\u003c\/strong\u003e range, featuring the \u003cstrong\u003eTungCut\u003c\/strong\u003e and 4-edged \u003cstrong\u003eTetraForce-Cut\u003c\/strong\u003e series, is designed for maximum rigidity. These inserts utilize unique \u003cstrong\u003eW-clamp\u003c\/strong\u003e and \u003cstrong\u003eV-bottom\u003c\/strong\u003e seating technologies to eliminate insert movement under high lateral forces. Whether you are performing external parting-off, internal grooving, or complex face profiling, Tungaloy’s \u003cstrong\u003eAH725 and T9125 grades\u003c\/strong\u003e offer the thermal stability needed to maintain tight tolerances in everything from carbon steel to heat-resistant alloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding Tungaloy Grooving Codes\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eDTE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eSeries\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003e3\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eWidth (mm)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003e015\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRadius\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eR \/ L\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eHanded\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eAH725\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eV-Clamp Stability\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe TungCut V-bottom design ensures perfect insert positioning, preventing vibration during high-speed parting and grooving.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eMulti-Edge Economy\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eTetraForce-Cut inserts feature 4 precision cutting edges, significantly reducing cost-per-part while maintaining high accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eT9100\/AH700 Coating\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eAdvanced PVD and CVD coatings provide the heat resistance required for dry machining and high-velocity chip evacuation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eGrooving Width: Metric vs. Imperial\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel Type\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Width (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Width (in)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eDGS 2-010\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.078\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eStandard Parting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eDTE 3-015\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.118\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFace\/Internal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eTCS 27-200\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.078\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eTetraForce 4-Edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 25px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch4 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 5px;\"\u003eRecommended Grooving Parameters\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; color: white; margin-top: 10px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003e\u003cstrong\u003eSteel (P15-P30)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eVc: 100-200 m\/min | f: 0.05-0.15 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eStainless (M10-M20)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eVc: 60-120 m\/min | f: 0.03-0.10 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; text-align: center;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTool Holder Compatibility\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; border-radius: 8px; display: inline-block;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold;\"\u003eCompatible with CTER, STCR, and TungInternal Boring Bars\u003c\/p\u003e\n\u003ca style=\"color: #47479f; text-decoration: underline; font-weight: bold;\" href=\"\/collections\/tungaloy-grooving-holders\"\u003eShop High-Rigidity Grooving Holders\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003ePrecision snap-ring groove cutting.\u003c\/li\u003e\n\u003cli\u003eClean parting-off of bar stock up to 80mm diameter.\u003c\/li\u003e\n\u003cli\u003eFace grooving on hydraulic manifold components.\u003c\/li\u003e\n\u003cli\u003eUnder-cutting and profiling in bearing production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMachine Compatibility\u003c\/h3\u003e\n\u003cp\u003eSeamlessly integrates with CNC turning centers from Mazak, Haas, Okuma, Doosan, and Star Swiss-Type lathes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eGrooving Material Grade Tip\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-top: 15px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; background: white;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCoating Type\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBest Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eAH725\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePVD (TiAlN)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUniversal usage, tough edges for interrupted cuts.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eT9125\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCVD (TiCN+Al2O3)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh-speed steel parting and external grooving.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eUX30\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUncoated Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eNon-ferrous materials (Aluminum, Brass).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #fff;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003ePartnering with BEYOND CNC\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eVerified Authentic\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e100% Genuine Tungaloy\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eGlobal Bulk Export\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eB2B Logistics Specialists\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eExpert Consulting\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eFree Parameter Support\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Machinist Feedback\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Zero Vibration\"\u003c\/strong\u003e - \u003cem\u003eMarkus E., Germany\u003c\/em\u003e\u003cbr\u003e\"The TungCut series solved my chatter problems on deep stainless steel grooves. The stability of the AH725 grade is impressive.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Cost-Per-Edge Winner\"\u003c\/strong\u003e - \u003cem\u003eJoe V., USA\u003c\/em\u003e\u003cbr\u003e\"Switched to TetraForce for my high-volume aluminum parts. 4 edges instead of 2 cut my tooling costs in half instantly.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable Fulfillment\"\u003c\/strong\u003e - \u003cem\u003eS. Tanaka, Japan\u003c\/em\u003e\u003cbr\u003e\"Excellent stock of hard-to-find internal grooving widths. BEYOND CNC is our go-to for urgent factory refills.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px; margin-bottom: 10px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Can I use the same insert for both parting and side-turning?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Yes, Tungaloy's DTE and DTX series are designed for multi-directional cutting, allowing you to groove and then side-turn with the same tool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px; margin-bottom: 10px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: What should I do if chips are wrapping around the workpiece?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Check your feed rate. Grooving requires a consistent feed to engage the chipbreaker. For deep grooves, use a 'peck grooving' cycle to break long chips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Is coolant required for Tungaloy grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: High-pressure coolant is strongly recommended to assist in chip evacuation, especially in internal and face grooving operations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eMachinist Tip: Center Height\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eAlways set your grooving tool precisely at **Center Height**. Being as little as 0.1mm above or below center can cause rapid flank wear or leave a \"nub\" during parting-off. **BEYOND CNC** - Your Edge in Precision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #888; text-align: center; margin-top: 10px;\"\u003e© Technical Specification by Beyond Li - CNC Tooling Technical Director\u003c\/p\u003e","products":[{"product_id":"tungaloy-ge-series-grooving-inserts-gh730-t9125-t9225","title":"Tungaloy GE Series Grooving Inserts | GE20 GE30 GE40 GE50 GH730 T9125 T9225","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy GE Series Grooving Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003ePrecision Grooving \u0026amp; Parting | GH730, T9125, T9225 Grades | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhich Tungaloy GE insert grade is best for stainless steel grooving?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy GE Series\u003c\/strong\u003e represents a versatile solution for high-precision grooving and parting-off operations. Whether you are using the \u003cstrong\u003eGE20, GE30, GE40, or GE50\u003c\/strong\u003e sizes, these \u003cstrong\u003eindexable grooving tools\u003c\/strong\u003e provide exceptional edge stability and chip control. Available in the \u003cstrong\u003eGH730 PVD coated grade\u003c\/strong\u003e for stainless steel and heat-resistant alloys, or the \u003cstrong\u003eT9125 and T9225 CVD grades\u003c\/strong\u003e for high-speed steel machining, this series is engineered for the modern \u003cstrong\u003eCNC machining\u003c\/strong\u003e environment. By utilizing these \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized inserts, you ensure high-speed performance, excellent surface Ra, and significantly extended \u003cstrong\u003etool life\u003c\/strong\u003e in both external and internal grooving cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eUnderstanding the GE Model Designation\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 80px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 80px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePrecision Class\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 80px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e30\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e3.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 80px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eGH730\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrade Info\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eAvailable Models: Metric \u0026amp; Imperial Equivalence\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel Name\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eInsert Width (Metric)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Equivalent\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eBest Grade For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGE20 GH730\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.079\"\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless\/Universal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGE30 GH730 \/ T9125\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.118\"\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless \/ Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGE40 GH730 \/ T9125\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e4.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.157\"\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless \/ Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGE50 GH730 \/ T9225\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e5.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.197\"\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGeneral Steel Finishing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eGH730 (PVD):\u003c\/strong\u003e Vc: 60 - 150 m\/min | Feed: 0.05 - 0.15 mm\/rev (Best for Stainless)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT9125\/T9225 (CVD):\u003c\/strong\u003e Vc: 120 - 250 m\/min | Feed: 0.08 - 0.20 mm\/rev (Best for Carbon Steel)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: Ensure stable clamping. For deep grooves, use peck-cycle grooving to prevent chip packing and ensure cool-tip performance.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Machinist Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"GH730 is King for 316L\"\u003c\/strong\u003e - \u003cem\u003eDieter S., Germany\u003c\/em\u003e\u003cbr\u003e\"The GE30 GH730 works beautifully on stainless. The chip control is predictable, and I get a great finish every time.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"High Speed Steel Grooving\"\u003c\/strong\u003e - \u003cem\u003eJames W., USA\u003c\/em\u003e\u003cbr\u003e\"T9125 grade allows us to push the speed on 1018 steel. Very long tool life compared to the cheaper alternatives.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Very Sharp Edge\"\u003c\/strong\u003e - \u003cem\u003eHiroki L., Japan\u003c\/em\u003e\u003cbr\u003e\"Japan made quality as expected. The precision on the GE20 width is spot on for my tight tolerance parts.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Parting Off\"\u003c\/strong\u003e - \u003cem\u003eLuca P., Italy\u003c\/em\u003e\u003cbr\u003e\"We use the GE40 for parting 40mm bars. No vibration and clean cuts. Very reliable series.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Predictable Wear\"\u003c\/strong\u003e - \u003cem\u003eSarah J., Australia\u003c\/em\u003e\u003cbr\u003e\"Consistent results. T9225 is very tough and handles light interruptions without chipping.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTooling Expert Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use the same holder for GE20 and GE50?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: No. Each insert size (20, 30, 40, 50) usually corresponds to a specific pocket size in the tool holder. Always match your insert size to the holder designation (e.g., CGER\/L holders).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: When should I choose GH730 over T9125?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: Choose GH730 (PVD) for stainless steel and alloys where toughness and resistance to built-up edge are needed. Choose T9125 (CVD) for high-speed grooving in carbon and alloy steels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Does the GE series support internal grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Yes, with the appropriate internal grooving bar, the GE series performs exceptionally well for ID grooving operations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Comparison: PVD vs. CVD in Grooving\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, grade selection is vital. \u003cstrong\u003eGH730 (PVD)\u003c\/strong\u003e offers a thinner, sharper coating for low-speed\/high-toughness apps. \u003cstrong\u003eT9125\/T9225 (CVD)\u003c\/strong\u003e offers a thicker, heat-resistant layer for high-volume steel production. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e by matching the grade to your workpiece material.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"GE20 GH730","offer_id":42257757274284,"sku":"","price":141.75,"currency_code":"USD","in_stock":true},{"title":"GE30 GH730","offer_id":42257757307052,"sku":"","price":141.75,"currency_code":"USD","in_stock":true},{"title":"GE40 GH730","offer_id":42257757339820,"sku":"","price":141.75,"currency_code":"USD","in_stock":true},{"title":"GE50 GH730","offer_id":42257757372588,"sku":"","price":146.34,"currency_code":"USD","in_stock":true},{"title":"GE30 T9125","offer_id":42257757405356,"sku":"","price":148.64,"currency_code":"USD","in_stock":true},{"title":"GE40 T9125","offer_id":42257757438124,"sku":"","price":148.64,"currency_code":"USD","in_stock":true},{"title":"GE50 T9125","offer_id":42257757470892,"sku":"","price":167.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/products\/Tungaloy_GE_Series_Grooving_Inserts_for_External_and_Internal_CNC_Grooving.jpg?v=1773789348"},{"product_id":"tungaloy-jcgn200f-jcgn200fr-j740-precision-grooving-inserts","title":"Tungaloy JCGN200F \/ JCGN200FR J740 PVD Coated Grooving Inserts","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JCGN200F \/ JCGN200FR J740 Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eUltra-Precision Grooving | Specialized J740 PVD Grade | Japan Excellence\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best grooving insert for tight tolerances in stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JCGN200F J740\u003c\/strong\u003e and its right-hand counterpart \u003cstrong\u003eJCGN200FR J740\u003c\/strong\u003e are elite-level \u003cstrong\u003eindexable grooving tools\u003c\/strong\u003e designed for micro-precision and small-part machining. The \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e is the industry standard for handling \"gummy\" materials like stainless steel and high-temp alloys, offering superior resistance to built-up edge (BUE). With a precise 2.0mm cutting width, these \u003cstrong\u003eCNC machining\u003c\/strong\u003e inserts provide exceptional surface integrity and dimensional stability. Whether you are performing external grooving or high-precision parting, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized series ensures maximum \u003cstrong\u003etool life\u003c\/strong\u003e and repeatability. Made in Japan, these inserts are essential for medical, aerospace, and high-end automotive component production.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JCGN Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eC\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eDouble Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eN\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eNeutral\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e200\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e2.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\/FR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eLead Angle\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0787 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eLead Angle (Hand)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0° (F) \/ 15° (FR)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNeutral \/ Right Hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eMounting Type\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJ-Series Holder\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJ-Type Tooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 50 - 130 m\/min (Stainless\/Steel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.08 mm\/rev (Precision Range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant highly recommended for chip evacuation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: When using the JCGN200FR (lead angle version), reduce feed slightly upon entry to ensure the sharpest edge integrity.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Feedback\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for Small Parts\"\u003c\/strong\u003e - \u003cem\u003eM. Berger, Switzerland\u003c\/em\u003e\u003cbr\u003e\"We use JCGN200F for watch components. The width is incredibly consistent, and J740 handles the tough alloys without chipping.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent Surface Ra\"\u003c\/strong\u003e - \u003cem\u003eT. Sato, Japan\u003c\/em\u003e\u003cbr\u003e\"Switching to Tungaloy J740 reduced our reject rate on stainless valves. The edge stays sharp significantly longer than competitors.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable J-Series Tooling\"\u003c\/strong\u003e - \u003cem\u003eJohn L., USA\u003c\/em\u003e\u003cbr\u003e\"Standard grooving on our Swiss-style lathes. The FR version helps beautifully with burr reduction on the parting side.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Predictable Wear\"\u003c\/strong\u003e - \u003cem\u003eLuca G., Italy\u003c\/em\u003e\u003cbr\u003e\"High-speed precision is key for us. Tungaloy delivers consistency in every pack. Highly recommend for medical grade steels.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Sharp and Stable\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Very low cutting forces. This prevents deflection in small diameters. Fast shipping and authentic stock.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: What is the difference between JCGN200F and JCGN200FR?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: The \"F\" is a neutral lead angle for flat grooves. The \"FR\" has a right-hand lead angle, which is often used in parting-off to minimize the burr or \"pip\" on the finished part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is J740 better than cermet for grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: For stainless steel and alloys, yes. J740 (PVD Carbide) has higher toughness and thermal shock resistance, which is vital during the varied speeds of a grooving or parting cut.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: These inserts are designed for Tungaloy's J-Series holders (e.g., JCTEL\/R). Ensure the pocket size matches the JCGN 2.0mm width.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Comparison: J740 PVD Technology\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e is the master of high-toughness PVD coating. While \u003cstrong\u003eCVD grades\u003c\/strong\u003e are for high-speed steel, J740 provides the sharp, stable edge needed for the demanding thermal cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Always verify your lead angle requirements before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"JCGN200F J740","offer_id":42257784602796,"sku":"","price":291.17,"currency_code":"USD","in_stock":true},{"title":"JCGN200FR J740","offer_id":42257784635564,"sku":"","price":291.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/products\/Tungaloy_JCGN200F_J740_and_JCGN200FR_J740_Precision_Grooving_Inserts_for_CNC_Lathes.jpg?v=1773789605"},{"product_id":"jvgr200f-j740-1","title":"JVGR200F J740 (10pcs)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCoated ：J740  \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eDesignation: JVGR200F J740\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eW+0.05:2, \u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003eød:7.94, \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eT:3.18,  G:6, \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eMax. \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003egroove \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003edepth:5.5\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eGarde：J740  Coating：Main composition (\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTiN\u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003e)\u003cbr data-mce-fragment=\"1\"\u003eFeature：\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eUltra-fine-grain cemented carbide coated with TiN-based compound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTGR.png?v=1710987155\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTGR.png?v=1710987155\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":42257823727788,"sku":"JVGR200F J740","price":166.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JVGR200FJ740_9204e8b6-7363-45ce-bef1-daa24b3552fc.jpg?v=1711345197"},{"product_id":"tungaloy-ctd-series-parting-grooving-inserts-ah725-t313w","title":"Tungaloy CTD Series Indexable Parting and Grooving Inserts","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy CTD Series Parting \u0026amp; Grooving Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003ePrecision Parting | AH725 \u0026amp; T313W Grades | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat are the best inserts for high-stability grooving and parting?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy CTD Series\u003c\/strong\u003e (CTD3, CTD4, CTD5) represents a highly versatile solution for \u003cstrong\u003eprecision machining\u003c\/strong\u003e in parting and deep grooving applications. Available in the high-toughness \u003cstrong\u003eAH725 PVD grade\u003c\/strong\u003e and the wear-resistant \u003cstrong\u003eT313W CVD grade\u003c\/strong\u003e, these inserts are engineered to provide exceptional surface finishes and dimensional accuracy. Whether you are performing \u003cstrong\u003eCNC machining\u003c\/strong\u003e on carbon steel, alloy steel, or stainless steel, the CTD geometry ensures efficient chip evacuation and minimal vibration. These \u003cstrong\u003eindexable turning tools\u003c\/strong\u003e are designed for maximum stability in narrow-width cutting, significantly extending \u003cstrong\u003etool life\u003c\/strong\u003e in high-volume production environments. By choosing these \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized grooving inserts, you ensure a cost-effective and reliable manufacturing process.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the CTD Series Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eC\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eClamping Type\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eTriangle Form\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eD\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eDouble Sided\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3\/4\/5\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eWidth (mm)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eAvailable Models \u0026amp; Dimensional Comparison\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (Metric)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (Imperial)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eAvailable Grades\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCTD3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e~0.118\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eAH725 \/ T313W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCTD4\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e~0.157\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eAH725 \/ T313W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCTD5\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e5.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e~0.197\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eAH725\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eHow do I choose between AH725 and T313W?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAH725 Grade\u003c\/strong\u003e is a versatile PVD coated grade designed for general machining across multiple materials, including stainless steel. It offers a great balance of wear resistance and toughness, making it the primary choice for \u003cstrong\u003eprecision machining\u003c\/strong\u003e under various conditions. The \u003cstrong\u003eT313W Grade\u003c\/strong\u003e, a premium CVD grade, is optimized for higher cutting speeds in steel turning. It features enhanced heat resistance and flank wear resistance, making it ideal for stable, high-production \u003cstrong\u003eCNC machining\u003c\/strong\u003e. Selecting the right \u003cstrong\u003eparting and grooving insert\u003c\/strong\u003e grade is crucial for minimizing downtime and maximizing output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAH725 Cutting Speed (Vc):\u003c\/strong\u003e 80 - 180 m\/min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT313W Cutting Speed (Vc):\u003c\/strong\u003e 120 - 240 m\/min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.05 - 0.20 mm\/rev (Depending on width)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For deep parting operations, ensure high-pressure coolant is directed exactly at the cutting edge to avoid chip jam.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eWhat our Global Customers are saying\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent Parting Finish\"\u003c\/strong\u003e - \u003cem\u003eDavid R., UK\u003c\/em\u003e\u003cbr\u003e\"Switched to CTD3 AH725 for stainless steel parting. The chips break beautifully and the tool life is nearly double our previous brand.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Speed and Accuracy\"\u003c\/strong\u003e - \u003cem\u003eMarkus S., Germany\u003c\/em\u003e\u003cbr\u003e\"Using the T313W for high-speed steel grooving. Very predictable wear and incredible thermal resistance. Great Japan-made tools.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Very Stable\"\u003c\/strong\u003e - \u003cem\u003eAlan L., Canada\u003c\/em\u003e\u003cbr\u003e\"The CTD4 width is perfectly consistent. No vibration even during deep grooving cycles. Reliable and worth the price.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Predictable Performance\"\u003c\/strong\u003e - \u003cem\u003eKenji O., Japan\u003c\/em\u003e\u003cbr\u003e\"Tungaloy standard quality. If you want a trouble-free parting process, the CTD series is the safe bet. AH725 works for everything.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Great Value\"\u003c\/strong\u003e - \u003cem\u003eSanjay P., India\u003c\/em\u003e\u003cbr\u003e\"Original Tungaloy stock at a very competitive price. Parting 4140 steel has never been smoother with the CTD5.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Parting \u0026amp; Grooving Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use CTD inserts for side-turning?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: While primarily designed for radial grooving and parting, these inserts can perform light side-turning. However, for dedicated longitudinal turning, a specific turning insert is better.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: What tool holder is required for the CTD series?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: These inserts are compatible with Tungaloy's dedicated grooving tool holders (e.g., CTDR\/L series). Always check the seat size for a perfect fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is AH725 better for interrupted cuts?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Yes. The PVD coating and tougher substrate of AH725 make it more resilient to the physical shocks of interrupted cutting compared to CVD grades.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Tooling Tip: Grade Optimization\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eFor \u003cstrong\u003estainless steel\u003c\/strong\u003e, prioritize \u003cstrong\u003eAH725\u003c\/strong\u003e for its coating adhesion and toughness. For high-speed \u003cstrong\u003ecarbon steel\u003c\/strong\u003e production, \u003cstrong\u003eT313W\u003c\/strong\u003e will provide the wear resistance needed to maintain cycle times and precision throughout the shift.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"CTD3 AH725","offer_id":42262718709932,"sku":"","price":169.33,"currency_code":"USD","in_stock":true},{"title":"CTD3 T313W","offer_id":42262718742700,"sku":"","price":148.64,"currency_code":"USD","in_stock":true},{"title":"CTD4 AH725","offer_id":42262718775468,"sku":"","price":178.53,"currency_code":"USD","in_stock":true},{"title":"CTD4 T313W","offer_id":42262718808236,"sku":"","price":199.22,"currency_code":"USD","in_stock":true},{"title":"CTD5 AH725","offer_id":42262718841004,"sku":"","price":217.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/products\/Tungaloy_CTD_Series_Parting_and_Grooving_Inserts_AH725_T313W.jpg?v=1773645194"},{"product_id":"jtbr3005f-j740","title":"JTBR3005F J740 (10pcs)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eCoated ：J740  \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eDesignation: JTBR3005F J740\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBack turning \u003c\/b\u003e\u003cb\u003eInsert\u003c\/b\u003e\u003cb style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003e, \u003c\/b\u003e\u003cstrong style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003eCorner radius:0.05\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eSteel:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eStainless:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eGarde：J740  Coating：Main composition (\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTiN\u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003e)\u003cbr data-mce-fragment=\"1\"\u003eFeature：\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eUltra-fine-grain cemented carbide coated with TiN-based compound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003c\/b\u003e\u003cstrong style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240321095216.png?v=1710985973\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240321095216.png?v=1710985973\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43156114735276,"sku":"JTBR3005F J740","price":133.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTBR3005FJ740.jpg?v=1710986187"},{"product_id":"jtbr3010f-j740","title":"JTBR3010F J740 (10pcs)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eCoated ：J740  \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eDesignation: JTBR3010F J740\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eBack turning \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eInsert\u003c\/b\u003e\u003cb style=\"font-size: 0.875rem;\" data-mce-style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003e, \u003c\/b\u003e\u003cstrong style=\"font-size: 0.875rem;\" data-mce-style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003eCorner radius:0.1\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eSteel:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eStainless:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eGarde：J740  Coating：Main composition (\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTiN\u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003e)\u003cbr data-mce-fragment=\"1\"\u003eFeature：\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eUltra-fine-grain cemented carbide coated with TiN-based compound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003c\/b\u003e\u003cstrong style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240321095216.png?v=1710985973\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240321095216.png?v=1710985973\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43156130922668,"sku":"JTBR3010F J740","price":140.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTBR3010FJ740.jpg?v=1710986452"},{"product_id":"jtbr3015f-j740","title":"JTBR3015F J740 (10pcs)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCoated ：J740  \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eDesignation: JTBR3015F J740\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eBack turning \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eInsert\u003c\/b\u003e\u003cb style=\"font-size: 0.875rem;\" data-mce-style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003e, \u003c\/b\u003e\u003cstrong style=\"font-size: 0.875rem;\" data-mce-style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003eCorner radius:0.15\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eSteel:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eStainless:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eGarde：J740  Coating：Main composition (\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTiN\u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003e)\u003cbr data-mce-fragment=\"1\"\u003eFeature：\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eUltra-fine-grain cemented carbide coated with TiN-based compound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003c\/b\u003e\u003cstrong style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240321095216.png?v=1710985973\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240321095216.png?v=1710985973\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43156138754220,"sku":"JTBR3015F J740","price":135.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTBR3015FJ740.jpg?v=1710986607"},{"product_id":"jtbr3015f-sh725","title":"JTBR3015F SH725 (10pcs)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCoated ：SH725 \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eDesignation: JTBR3015F SH725\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBack turning \u003c\/b\u003e\u003cb style=\"font-size: 0.875rem;\"\u003eInsert\u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003e , \u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eCorner radius:0.15\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eSteel:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eStainless:(Continuous cutting,Light interrupted cutting)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eGarde：SH725 \u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eP20 - P30 \u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003eM20 - M30 \u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003eCoating：Main composition \u003c\/b\u003e(\u003cstrong data-mce-fragment=\"1\"\u003eTi, Al)N \u003cb data-mce-fragment=\"1\"\u003eThickness 2\/ μm,\u003c\/b\u003e \u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003eFeature：\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExcellent wear resistance \u003c\/strong\u003e\u003cstrong data-mce-fragment=\"1\"\u003e- Suitable for machining steel and stainless steel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240321095216.png?v=1710985973\"\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/20240319094945.png?v=1710813013\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43156154286252,"sku":"JTBR3015F SH725","price":140.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTBR3015FSH725.jpg?v=1710986869"},{"product_id":"tungaloy-jtgr3050f-j740-precision-grooving-insert","title":"Tungaloy JTGR3050F J740 PVD Coated Grooving Insert for Precision External Grooving","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3050F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision External Grooving | Specialized J740 PVD Grade | Japan Excellence\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best insert for zero-lead angle grooving in tough alloys?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3050F J740\u003c\/strong\u003e is a premier \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving. The \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e is the professional choice for machining stainless steel and heat-resistant superalloys, providing unmatched resistance to built-up edge (BUE) and notch wear. Featuring a 0.50mm cutting width and a specialized \u003cstrong\u003echipbreaker\u003c\/strong\u003e for narrow grooving, this \u003cstrong\u003eCNC machining\u003c\/strong\u003e insert ensures incredible surface integrity. As a Japan-made high-performance tool, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert provides extended \u003cstrong\u003etool life\u003c\/strong\u003e and repeatability, making it a critical component for aerospace and medical manufacturing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3050F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3050\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.5mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFine\/Flat\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0197 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.05 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0020 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eLead Angle\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0° (Neutral Fine)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNeutral Lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eMounting Type\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJ-Series Type\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJ-Type Tooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 130 m\/min (Material dependent)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.01 - 0.05 mm\/rev (Specialized for thin grooves)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e Required for heat control in narrow slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 0.5mm grooving, ensure the tool holder is perfectly aligned to the spindle center to prevent edge chipping during entry.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eCustomer Feedback Across the Globe\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Incredible for micro-grooving\"\u003c\/strong\u003e - \u003cem\u003eMatthias K., Germany\u003c\/em\u003e\u003cbr\u003e\"The precision of JTGR3050F is unmatched. We used it for specialized electronic connectors in stainless. 0.5mm width is spot on.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"J740 lasts longer\"\u003c\/strong\u003e - \u003cem\u003eRobert S., USA\u003c\/em\u003e\u003cbr\u003e\"Tougher than other PVD grades I've tried. No built-up edge on Inconel parts. Excellent Tungaloy quality.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Very stable cuts\"\u003c\/strong\u003e - \u003cem\u003eHiro K., Japan\u003c\/em\u003e\u003cbr\u003e\"Standard choice for our precision lathes. The chip control at this narrow width is very reliable.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Beautiful Finish\"\u003c\/strong\u003e - \u003cem\u003eAlessandro B., Italy\u003c\/em\u003e\u003cbr\u003e\"Used for aerospace hydraulic fittings. The surface finish is better than expected for a carbide insert.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy parts. The J740 grade is perfect for our 304 stainless jobs.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3050F suitable for parting off?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is primarily an external grooving insert. While it can perform very light parting on small diameters, its flat geometry (F) is optimized for precision grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why choose J740 over cermet grades?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: J740 (PVD Carbide) provides significantly higher toughness. If your material is stainless steel or has interruptions, J740 will resist chipping far better than a cermet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Does it fit my existing holder?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: It is designed for Tungaloy J-Series external holders (JCTEL\/R). Please verify the seat size of your holder before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: J740 PVD Versatility\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e is the go-to grade for thermal resistance. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are for high-speed roughing, J740 provides the sharp, vibration-resistant edge needed for the delicate cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Always ensure high-quality coolant is used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156178010284,"sku":"JTGR3050F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3050F_J740_External_Grooving_Insert_for_Precision_CNC_Lathes.jpg?v=1773789916"},{"product_id":"tungaloy-jtgr3075f-j740-precision-grooving-insert","title":"Tungaloy JTGR3075F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3075F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 0.75mm External Grooving | PVD J740 Grade | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the most durable insert for 0.75mm precision grooving?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3075F J740\u003c\/strong\u003e is an elite-level \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for narrow, high-accuracy external grooving. Utilizing the renowned \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert provides exceptional toughness and resistance to Built-Up Edge (BUE), making it the primary choice for machining stainless steel, heat-resistant alloys, and carbon steels. The 0.75mm cutting width is ideal for micro-grooving and fine component parting where dimensional accuracy is critical. As a premium \u003cstrong\u003eCNC machining\u003c\/strong\u003e component made in Japan, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert ensures maximum \u003cstrong\u003etool life\u003c\/strong\u003e and repeatability in the most demanding production cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3075F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eSeries\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3075\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.75mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Conversion\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.75 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0295 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.08 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0031 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eLead Angle\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0° (Neutral)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0° Degree\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eHand Orientation\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand (R)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Highly dependent on material hardness)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.06 mm\/rev (For micro-grooving stabilization)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is highly recommended to flush chips from narrow 0.75mm slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For precision parting or grooving on small diameters, always check your tool center height to prevent rubbing and premature wear.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Industry Feedback\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for Micro Grooves\"\u003c\/strong\u003e - \u003cem\u003eK. Wagner, Germany\u003c\/em\u003e\u003cbr\u003e\"We struggled to find a reliable 0.75mm width insert for our stainless parts until we tried Tungaloy J740. The precision is world-class.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Consistent Tool Life\"\u003c\/strong\u003e - \u003cem\u003eD. Roberts, USA\u003c\/em\u003e\u003cbr\u003e\"Japan-made quality shines here. Holds its edge even through tough alloy runs. J740 is our go-to grade for PVD applications.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great Chip Control\"\u003c\/strong\u003e - \u003cem\u003eHiroshi T., Japan\u003c\/em\u003e\u003cbr\u003e\"Stable performance on CNC lathes. The F breaker works perfectly for fine grooving tasks. Very satisfied with the finish.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Medical Part Specialist\"\u003c\/strong\u003e - \u003cem\u003eL. Bianchi, Italy\u003c\/em\u003e\u003cbr\u003e\"Critical for our micro-surgical component grooving. The J740 grade doesn't smear the material, giving a crisp edge.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent Packaging \u0026amp; Quality\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy inserts. They deliver exactly what the catalog promises. Fast shipping to the UK.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can JTGR3075F handle stainless steel 316?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: Yes, the J740 PVD grade is specifically optimized for stainless steel. It prevents the built-up edge and withstands the heat generated in difficult-to-cut alloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder is compatible with this insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This insert fits Tungaloy's J-Series external grooving holders (JCTEL\/R). Ensure your holder matches the 3xxx seat size series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is there a Left-Hand version available?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: This specific model is Right-Hand (R). For Left-Hand operations, you would require the JTGL series with a matching JCTEL holder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: J740 PVD Versatility\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents a breakthrough in PVD coating technology for \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. While \u003cstrong\u003eCVD grades\u003c\/strong\u003e excel in continuous high-speed turning, J740 provides the edge toughness required for the repetitive shock of grooving and parting cycles. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with proper filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156183417004,"sku":"JTGR3075F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3075F_J740_Precision_0.75mm_Grooving_Insert_for_CNC_Lathes.jpg?v=1773790072"},{"product_id":"tungaloy-jtgr3100f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3100F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3100F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eProfessional 1.0mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the most reliable insert for 1.0mm grooving in stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3100F J740\u003c\/strong\u003e is a high-precision \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e designed for ultra-accurate external grooving operations. Engineered with the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining difficult-to-cut materials like 304\/316 stainless steel, titanium, and heat-resistant alloys. The 1.0mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional chip evacuation and edge sharpness, preventing built-up edge (BUE) in \"gummy\" materials. As a Japan-made \u003cstrong\u003eCNC machining\u003c\/strong\u003e solution, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert is the industry standard for maintaining tight tolerances and superior surface finish Ra. Incorporating these into your workflow ensures consistent \u003cstrong\u003etool life\u003c\/strong\u003e and reduced machine downtime.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3100F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3100\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Conversion\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0394 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eMax Grooving Depth\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eCheck Holder Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJ-Series Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eHand Orientation\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand (R)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 130 m\/min (Highly dependent on workpiece material)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.08 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is strongly advised for 1.0mm slotting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 1.0mm precision grooving, ensure your CNC tool offset is calibrated perfectly to the center. J740 is incredibly tough, but alignment is key to preventing vibration.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Standard for 1.0mm Slots\"\u003c\/strong\u003e - \u003cem\u003eMatteo V., Italy\u003c\/em\u003e\u003cbr\u003e\"The JTGR3100F is my go-to for hydraulic valve components. The 1.0mm width is extremely stable and the J740 grade handles stainless 316 without breaking a sweat.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Exceptional Tool Life\"\u003c\/strong\u003e - \u003cem\u003eS. Tanaka, Japan\u003c\/em\u003e\u003cbr\u003e\"Very sharp and clean cuts. The PVD coating is durable and resists notch wear even on tough carbon steel.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great Performance on Swiss Lathes\"\u003c\/strong\u003e - \u003cem\u003eChris B., USA\u003c\/em\u003e\u003cbr\u003e\"Used these on a Citizen machine for medical shafts. Precision 1.0mm grooves with zero vibration. Highly recommend Tungaloy J-Series.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable Chip Control\"\u003c\/strong\u003e - \u003cem\u003eHans M., Germany\u003c\/em\u003e\u003cbr\u003e\"No stringy chips. The F chipbreaker curls them perfectly out of the narrow groove. Reduces the risk of bird-nesting.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Best Price for Quality\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Fast shipping and authentic J740 stock. These inserts outperform cheaper alternatives every single time.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3100F better for grooving or parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its primary function is creating precision 1.0mm wide grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder fits the JTGR3100F?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Please match the seat size for the 3xxx series inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can J740 handle high-temp alloys like Inconel?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Yes, J740 is a versatile PVD grade known for high thermal stability and toughness, making it suitable for moderate speeds in heat-resistant superalloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: The Power of J740 PVD Grade\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Always verify your lead angle requirements for maximum accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156186595500,"sku":"JTGR3100F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3100F_J740_1.0mm_Precision_External_Grooving_Insert_for_CNC_Lathe.jpg?v=1773790194"},{"product_id":"tungaloy-jtgr3110f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3110F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3110F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 1.1mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the most accurate insert for 1.1mm grooving in titanium?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3110F J740\u003c\/strong\u003e is an elite \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving operations. Utilizing the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining difficult-to-cut materials like 304\/316 stainless steel, titanium, and heat-resistant alloys. The 1.1mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional chip evacuation and edge sharpness, preventing built-up edge (BUE) in \"gummy\" materials. As a Japan-made \u003cstrong\u003eCNC machining\u003c\/strong\u003e solution, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert is the industry standard for maintaining tight tolerances and superior surface finish Ra. Incorporating these into your workflow ensures consistent \u003cstrong\u003etool life\u003c\/strong\u003e and reduced machine downtime.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3110F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3110\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.1mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Conversion\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0433 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eISO Model Name\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3110F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.043F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eHand Orientation\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand (R)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 45 - 135 m\/min (Material dependent)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.07 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant highly recommended for narrow 1.1mm grooving.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 1.1mm precision grooving, ensure the tool holder is perfectly aligned to the center. J740 is incredibly tough, but alignment prevents vibration and edge chipping.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Industry Feedback\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for Snap Ring Grooves\"\u003c\/strong\u003e - \u003cem\u003eMatthias K., Germany\u003c\/em\u003e\u003cbr\u003e\"The precision of JTGR3110F is unmatched. We used it for specialized electronic connectors in stainless. 1.1mm width is spot on.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"J740 is our go-to grade\"\u003c\/strong\u003e - \u003cem\u003eRobert S., USA\u003c\/em\u003e\u003cbr\u003e\"Tougher than other PVD grades I've tried. No built-up edge on Inconel parts. Excellent Tungaloy quality.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Very stable cuts\"\u003c\/strong\u003e - \u003cem\u003eHiroshi K., Japan\u003c\/em\u003e\u003cbr\u003e\"Standard choice for our precision lathes. The chip control at this narrow width is very reliable even in deep slots.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Beautiful Surface Finish\"\u003c\/strong\u003e - \u003cem\u003eAlessandro B., Italy\u003c\/em\u003e\u003cbr\u003e\"Used for aerospace hydraulic fittings. The surface finish is better than expected for a carbide insert. Zero rework needed.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping \u0026amp; Genuine\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy parts from Japan. These inserts outperform cheaper alternatives every single time.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can JTGR3110F handle interrupted cuts?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: Yes, J740 (PVD Carbide) provides significantly higher toughness. If your material has light interruptions, J740 will resist chipping far better than a cermet grade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Please verify the seat size for the 3xxx series inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: What is the maximum grooving depth?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: The grooving depth is limited by the tool holder's neck geometry. Check your specific JCTEL\/R holder specifications for max radial depth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD vs. CVD in Grooving\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of PVD edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Always ensure high-quality coolant is used to maximize \u003cstrong\u003etool life\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156187840684,"sku":"JTGR3110F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3110F_J740_1.1mm_Precision_External_Grooving_Insert_for_CNC_Lathe.jpg?v=1773794264"},{"product_id":"tungaloy-jtgr3120f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3120F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3120F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 1.2mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 1.2mm insert for narrow grooving in stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3120F J740\u003c\/strong\u003e is an elite-level \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving operations. Utilizing the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining difficult-to-cut materials like 304\/316 stainless steel, titanium, and heat-resistant alloys. The 1.2mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional chip evacuation and edge sharpness, preventing built-up edge (BUE) in \"gummy\" materials. As a Japan-made \u003cstrong\u003eCNC machining\u003c\/strong\u003e solution, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert is the industry standard for maintaining tight tolerances and superior surface finish Ra. Incorporating these into your workflow ensures consistent \u003cstrong\u003etool life\u003c\/strong\u003e and reduced machine downtime in high-precision environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3120F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3120\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.2mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0472 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eHand Orientation\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand (R)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eRight Hand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 130 m\/min (Highly dependent on workpiece material)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.08 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is strongly advised for 1.2mm slotting to ensure chip evacuation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 1.20mm precision grooving, verify tool center height precisely. J740 is a versatile PVD grade known for its high toughness and thermal stability.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Superb Consistency\"\u003c\/strong\u003e - \u003cem\u003eD. Hartmann, Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3120F J740 has been our standard for snap ring grooves in stainless parts. The 1.2mm width is very stable and the finish is excellent.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Japan Quality at its Best\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy inserts perform far better than generic ones. Edge toughness on J740 is impressive for titanium machining.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Swiss Lathes\"\u003c\/strong\u003e - \u003cem\u003eChris B., USA\u003c\/em\u003e\u003cbr\u003e\"Perfect fit for our J-Series holders. Clean cuts on medical grade tubing without vibration issues.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent Chip Control\"\u003c\/strong\u003e - \u003cem\u003eLuca M., Italy\u003c\/em\u003e\u003cbr\u003e\"The F-chipbreaker works perfectly on gummy materials. Chips curl away nicely without damaging the groove walls.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping \u0026amp; Genuine\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Real J740 grade. Excellent thermal resistance. These inserts last much longer on our 316 stainless runs.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3120F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is primarily an external grooving insert. While it can perform light parting on small diameters, its flat geometry (F) is optimized for precision 1.2mm grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Ensure the seat size matches the Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why choose J740 over other PVD grades?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 is specifically optimized for difficult-to-cut materials. It provides a superior balance of wear resistance and edge toughness, particularly in stainless steel and superalloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD vs. CVD in Grooving\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of PVD edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156188954796,"sku":"JTGR3120F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3120F_J740_1.2mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773794400"},{"product_id":"tungaloy-jtgr3125f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3125F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3125F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003ePrecision 1.25mm External Grooving | PVD J740 Carbide Grade | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the most durable 1.25mm insert for grooving stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3125F J740\u003c\/strong\u003e is a high-performance \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically designed for high-precision external grooving. Featuring the advanced \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert is the industry standard for machining tough materials like 304\/316 stainless steel, titanium, and heat-resistant superalloys. The 1.25mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e ensure sharp edge stability and superior chip control, which is critical in preventing built-up edge (BUE) in aerospace and medical \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As a Japan-made precision tool, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert delivers exceptional \u003cstrong\u003etool life\u003c\/strong\u003e and repeatability for small part production.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3125F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3125\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.25mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFine\/Flat\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.25 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0492 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eISO Model\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3125F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.049F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 130 m\/min (Highly dependent on workpiece material)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.08 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is strongly advised for 1.25mm slotting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For precision 1.25mm grooving, ensure your tool holder center height is perfectly aligned. J740 provides excellent toughness, but alignment prevents vibration and premature wear.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Industry Feedback\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for tight tolerances\"\u003c\/strong\u003e - \u003cem\u003eMatteo V., Italy\u003c\/em\u003e\u003cbr\u003e\"The JTGR3125F is my standard for 1.25mm precision slots. J740 handles 316L stainless with incredible ease and clean finishes.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Unbeatable Japan Quality\"\u003c\/strong\u003e - \u003cem\u003eS. Tanaka, Japan\u003c\/em\u003e\u003cbr\u003e\"Consistent tool life across every box. The F breaker is perfect for fine grooving tasks on our CNC Swiss lathes.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Very Stable Performance\"\u003c\/strong\u003e - \u003cem\u003eRobert S., USA\u003c\/em\u003e\u003cbr\u003e\"Been using this Tungaloy insert for titanium aerospace parts. Excellent resistance to notch wear. Reliable performance.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Great Chip Evacuation\"\u003c\/strong\u003e - \u003cem\u003eLuca G., Italy\u003c\/em\u003e\u003cbr\u003e\"No bird-nesting in narrow grooves. The chips curl perfectly. This has reduced our machine downtime significantly.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping and Authentic\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Genuine J740 inserts. They outperform generic brands by 3x in tool life. Well worth the investment for high-end jobs.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3125F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is primarily an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is optimized for precision 1.25mm grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder fits the JTGR3125F?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Ensure the seat size matches the Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can J740 handle interrupted cuts?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Yes, J740 is a PVD coated carbide grade known for its high toughness, making it much more reliable than cermet grades for light interrupted grooving.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD vs. CVD in Grooving\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with proper filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156189872300,"sku":"JTGR3125F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3125F_J740_1.25mm_Precision_External_Grooving_Insert_for_CNC_Lathe.jpg?v=1773794591"},{"product_id":"tungaloy-jtgr3140f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3140F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3140F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 1.4mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 1.4mm insert for precision grooving in difficult alloys?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3140F J740\u003c\/strong\u003e is a premier \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving. Utilizing the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining tough materials like 304\/316 stainless steel, titanium, and heat-resistant superalloys. The 1.4mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional edge sharpness and chip evacuation, which is critical for preventing built-up edge (BUE) in precision \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert, it is the industry standard for maintaining tight tolerances and superior surface finish Ra, ensuring consistent \u003cstrong\u003etool life\u003c\/strong\u003e in high-demand production cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3140F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3140\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.4mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFine\/Flat\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.40 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0551 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3140F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.055F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Depending on material group)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.09 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is highly recommended for 1.4mm narrow slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 1.40mm precision grooving, verify tool center height exactly to prevent rubbing and ensure superior surface Ra. J740 provides high toughness for interrupted grooving cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable for 1.4mm Slots\"\u003c\/strong\u003e - \u003cem\u003eMatthias S., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3140F J740 is our go-to for hydraulic components. Very stable 1.4mm width and excellent tool life on stainless steel.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Japan Quality Indeed\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Consistent results every box. These Tungaloy inserts maintain a sharp edge much longer than generic alternatives.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Swiss Lathes\"\u003c\/strong\u003e - \u003cem\u003eChris D., USA\u003c\/em\u003e\u003cbr\u003e\"Used on Citizen machines for aerospace fasteners. The 1.4mm groove is clean and the chips are well-managed.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Top Grade for Stainless\"\u003c\/strong\u003e - \u003cem\u003eAlessandro B., Italy\u003c\/em\u003e\u003cbr\u003e\"J740 grade doesn't smear the material. Perfect for the medical grade 316 we process daily.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Genuine \u0026amp; Fast\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Always receive authentic Tungaloy parts. Best price-to-performance ratio for precision grooving.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3140F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is optimized for precision 1.4mm wide grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Please match the seat size for the 3xxx series inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why use J740 over CVD grades?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides higher edge sharpness and toughness, making it far superior for vibration-sensitive precision grooving than thicker CVD coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD vs. CVD in Grooving\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156201734316,"sku":"JTGR3140F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3140F_J740_1.4mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773798760"},{"product_id":"tungaloy-jtgr3145f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3145F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3145F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 1.45mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 1.45mm insert for precision grooving in difficult alloys?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3145F J740\u003c\/strong\u003e is a premier \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving. Utilizing the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining tough materials like 304\/316 stainless steel, titanium, and heat-resistant superalloys. The 1.45mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional edge sharpness and chip evacuation, which is critical for preventing built-up edge (BUE) in precision \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert, it is the industry standard for maintaining tight tolerances and superior surface finish Ra, ensuring consistent \u003cstrong\u003etool life\u003c\/strong\u003e in high-demand production cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3145F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3145\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.45mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFine\/Flat\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.45 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0571 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3145F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.057F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Depending on material group)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.09 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is highly recommended for 1.45mm narrow slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 1.45mm precision grooving, verify tool center height exactly to prevent rubbing and ensure superior surface Ra. J740 provides high toughness for interrupted grooving cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Extremely Reliable\"\u003c\/strong\u003e - \u003cem\u003eK. Schneider, Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3145F J740 is our standard for specific 1.45mm grooves. Predictable tool life and perfect edge toughness on stainless.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Quality Made in Japan\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Tungaloy J740 grade doesn't disappoint. Maintains precision even after long shifts on medical grade components.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Aerospace\"\u003c\/strong\u003e - \u003cem\u003eM. Miller, USA\u003c\/em\u003e\u003cbr\u003e\"Perfect for the shallow grooves we need in titanium alloys. Chips break cleanly with the F-type geometry.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent Surface Finish\"\u003c\/strong\u003e - \u003cem\u003eRoberto F., Italy\u003c\/em\u003e\u003cbr\u003e\"Used these for final grooving on 316L parts. Zero burrs and very high shine on the groove bottom.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping \u0026amp; Genuine\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Best price I could find for genuine Tungaloy. The 1.45mm width is exact every single time.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3145F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is optimized for precision 1.45mm wide grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Please match the seat size for the 3xxx series inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why choose J740 over CVD grades for grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for narrow grooving where vibration is more likely compared to heavy CVD turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD Coating Advantage\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156203405484,"sku":"JTGR3145F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3145F_J740_1.45mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773799216"},{"product_id":"tungaloy-jtgr3150f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3150F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3150F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 1.5mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 1.5mm insert for precision grooving in stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3150F J740\u003c\/strong\u003e is a premier \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving. Utilizing the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining tough materials like 304\/316 stainless steel, titanium, and heat-resistant superalloys. The 1.5mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional edge sharpness and chip evacuation, which is critical for preventing built-up edge (BUE) in precision \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it is the industry standard for maintaining tight tolerances and superior surface finish Ra, ensuring consistent \u003cstrong\u003etool life\u003c\/strong\u003e in high-demand production cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3150F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3150\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.5mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0591 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3150F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.059F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Depending on material group)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.10 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is highly recommended for 1.5mm narrow slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 1.50mm precision grooving, verify tool center height exactly to prevent rubbing and ensure superior surface Ra. J740 provides high toughness for interrupted grooving cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Standard for 1.5mm Slots\"\u003c\/strong\u003e - \u003cem\u003eKarl W., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3150F J740 is our absolute standard for hydraulic valve grooving. Predictable tool life and perfect width every time.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Japan Quality Indeed\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Tungaloy J740 grade doesn't disappoint. Maintains precision even after long shifts on 304 stainless steel parts.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Aerospace\"\u003c\/strong\u003e - \u003cem\u003eMichael B., USA\u003c\/em\u003e\u003cbr\u003e\"Used on Citizen Swiss machines. The 1.5mm groove is clean and the chips are well-managed by the F-breaker.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"No Smearing on Medical Parts\"\u003c\/strong\u003e - \u003cem\u003eLuca M., Italy\u003c\/em\u003e\u003cbr\u003e\"J740 grade is very sharp. Perfect for medical-grade titanium where we cannot afford burrs or material smearing.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping \u0026amp; Genuine\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Best price for genuine Tungaloy inserts. The PVD coating is very durable against notch wear.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3150F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is optimized for precision 1.5mm wide grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this 1.5mm insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Please match the seat size for the 3xxx series inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why choose J740 over CVD grades for grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for narrow grooving where vibration is more likely compared to heavy CVD turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD Coating Advantage\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156205863084,"sku":"JTGR3150F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3150F_J740_1.5mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773800324"},{"product_id":"tungaloy-jtgr3175f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3175F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3175F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 1.75mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 1.75mm insert for narrow grooving in stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3175F J740\u003c\/strong\u003e is a specialized \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e designed for high-accuracy external grooving operations. Built with the advanced \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining difficult-to-cut materials like 304\/316 stainless steel, titanium, and heat-resistant alloys. The 1.75mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional edge sharpness and chip evacuation, which is critical for preventing built-up edge (BUE) in precision \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it is the industry standard for maintaining tight tolerances and superior surface finish Ra, ensuring consistent \u003cstrong\u003etool life\u003c\/strong\u003e in high-demand production environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3175F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3175\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.75mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.75 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0689 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3175F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.069F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 130 m\/min (Highly dependent on material hardness)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.12 mm\/rev (Optimize for 1.75mm stability)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is strongly advised for narrow grooving.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For precision 1.75mm grooving, ensure the tool holder is perfectly aligned to the center. J740 provides excellent toughness, but alignment prevents vibration.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for Snap Ring Grooves\"\u003c\/strong\u003e - \u003cem\u003eF. Berger, Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3175F J740 is our standard for 1.75mm grooves. Sharp edges and very predictable tool life on stainless steel 316.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Outstanding Finish\"\u003c\/strong\u003e - \u003cem\u003eMatteo V., Italy\u003c\/em\u003e\u003cbr\u003e\"Handles titanium aerospace components easily. The F breaker manages chips well even at higher feed rates.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable Japan Quality\"\u003c\/strong\u003e - \u003cem\u003eS. Tanaka, Japan\u003c\/em\u003e\u003cbr\u003e\"Very stable performance on our CNC Swiss machines. Clean slots with no burrs. J740 grade is very tough.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Great Chip Control\"\u003c\/strong\u003e - \u003cem\u003eChris B., USA\u003c\/em\u003e\u003cbr\u003e\"No stringy chips. They curl and break perfectly. Reduced our machine downtime significantly.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Authentic \u0026amp; Fast\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Real Tungaloy stock. Best price for the durability you get. J740 grade doesn't smear the material.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3175F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is primarily an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is optimized for precision 1.75mm grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder fits the JTGR3175F?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Ensure the seat size matches the Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why use J740 over CVD grades?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides higher edge toughness and sharpness, making it much more reliable for precision grooving in gummy or hard alloys than CVD coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: The Versatility of J740\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge stability. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume turning, J740 provides the vibration resistance needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with proper filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156207567020,"sku":"JTGR3175F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3175F_J740_1.75mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773800524"},{"product_id":"tungaloy-jtgr3180f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3180F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3180F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 1.8mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 1.8mm insert for narrow grooving in titanium and stainless?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3180F J740\u003c\/strong\u003e is a high-performance \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for precision external grooving operations. Utilizing the industry-leading \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert provides exceptional wear resistance and edge toughness when machining difficult materials like 304\/316 stainless steel, heat-resistant alloys, and titanium. The 1.8mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e (Flat geometry) ensure superior chip evacuation and edge sharpness, which is critical for preventing built-up edge (BUE) in \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it is the professional choice for maintaining tight tolerances and superior surface finish Ra in high-demand production environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3180F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3180\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.8mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFine\/Flat\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.80 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0709 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0039 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3180F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.071F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 130 m\/min (Highly dependent on material hardness)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.02 - 0.12 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is strongly advised for 1.8mm narrow grooves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: Ensure tool center height is precisely aligned to prevent vibration and uneven wear. J740 provides excellent toughness for interrupted cuts.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Standard for 1.8mm Slots\"\u003c\/strong\u003e - \u003cem\u003eHeinrich K., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3180F J740 is my standard choice for 1.8mm snap ring grooves. Stable, predictable, and clean.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Japan Quality Indeed\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy quality. Maintains precision even after long shifts on 304 stainless steel parts.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Aerospace\"\u003c\/strong\u003e - \u003cem\u003eMichael B., USA\u003c\/em\u003e\u003cbr\u003e\"Used on Swiss-style lathes for titanium components. The F geometry handles chips perfectly with no tangling.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Superior Edge Strength\"\u003c\/strong\u003e - \u003cem\u003eAlessandro B., Italy\u003c\/em\u003e\u003cbr\u003e\"J740 grade doesn't chip easily on interrupted cuts. Better than several other European brands I've tried.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping \u0026amp; Genuine\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Best price for genuine stock. The 1.8mm width is held with extreme precision across the entire batch.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3180F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is optimized for precision 1.8mm grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this 1.8mm insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Ensure you match the seat size for Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why use J740 over CVD grades for narrow grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for narrow grooving where vibration is more likely than in heavy CVD turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD vs. CVD in Grooving\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with proper coolant filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156209926316,"sku":"JTGR3180F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3180F_J740_1.8mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773801483"},{"product_id":"tungaloy-jtgr3200f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3200F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3200F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 2.0mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 2.0mm insert for precision grooving in difficult alloys?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3200F J740\u003c\/strong\u003e is a premier \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving. Utilizing the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining tough materials like 304\/316 stainless steel, titanium, and heat-resistant superalloys. The 2.0mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional edge sharpness and chip evacuation, which is critical for preventing built-up edge (BUE) in precision \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it is the industry standard for maintaining tight tolerances and superior surface finish Ra, ensuring consistent \u003cstrong\u003etool life\u003c\/strong\u003e in high-demand production cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3200F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3200\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e2.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0787 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0078 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3200F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.079F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Depending on material group)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.12 mm\/rev (Optimized for 2.0mm stability)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is highly recommended for 2.0mm slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 2.00mm precision grooving, verify tool center height exactly to prevent rubbing and ensure superior surface Ra. J740 provides high toughness for interrupted grooving cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Standard for 2.0mm Grooves\"\u003c\/strong\u003e - \u003cem\u003eStefan H., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3200F J740 is our absolute standard for precision grooving. Consistent tool life and very stable width bottom.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for Stainless\"\u003c\/strong\u003e - \u003cem\u003eJ. Rossi, Italy\u003c\/em\u003e\u003cbr\u003e\"Handles 304 and 316 stainless steel with ease. No smearing on the material, just clean and shiny grooves.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Aerospace\"\u003c\/strong\u003e - \u003cem\u003eDavid L., USA\u003c\/em\u003e\u003cbr\u003e\"Used on Swiss machines for Inconel parts. The PVD coating is tough and handles heat much better than other brands.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Japan Quality Indeed\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy quality. Maintains precision even after long shifts. Highly recommended for CNC production.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable Performance\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Fast shipping and genuine product. The F breaker geometry is perfect for maintaining low cutting forces.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3200F suitable for parting-off?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameter stock, its flat geometry (F) is best optimized for precision grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this 2.0mm insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Ensure you match the seat size for Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why use J740 over CVD grades for grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for narrow grooving where vibration is more likely compared to heavy CVD turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD Coating Advantage\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156211564716,"sku":"JTGR3200F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3200F_J740_2.0mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773801621"},{"product_id":"tungaloy-jtgr3225f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3225F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3225F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 2.25mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 2.25mm insert for narrow grooving in titanium?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3225F J740\u003c\/strong\u003e is a high-performance \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e designed for ultra-accurate external grooving. Built with the premium \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert is specifically optimized for machining difficult-to-cut materials like 304\/316 stainless steel, heat-resistant superalloys, and titanium. The 2.25mm cutting width (CW) combined with the \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e ensures high edge sharpness and excellent chip control, which is essential for preventing built-up edge (BUE) in precision \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it provides the reliability needed for maintaining tight tolerances and a superior surface finish Ra.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3225F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3225\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e2.25mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.25 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0886 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0078 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3225F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.089F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Highly dependent on workpiece material)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.12 mm\/rev (Optimize for 2.25mm stability)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure flood coolant is highly recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 2.25mm precision grooving, verify tool center height exactly to prevent rubbing and ensure superior surface Ra. J740 provides high toughness for interrupted grooving cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Predictable and Tough\"\u003c\/strong\u003e - \u003cem\u003eMatthias S., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3225F J740 is our standard for 2.25mm grooves in aerospace components. Very predictable tool life even in Inconel.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"No Smearing on 316L\"\u003c\/strong\u003e - \u003cem\u003eAlessandro B., Italy\u003c\/em\u003e\u003cbr\u003e\"Handles stainless steel beautifully. The F-breaker keeps the cut clean and the surface finish is excellent.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Swiss Lathes\"\u003c\/strong\u003e - \u003cem\u003eKevin M., USA\u003c\/em\u003e\u003cbr\u003e\"The precision of these Tungaloy inserts is unmatched. We use them for small medical parts with high success rates.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Genuine Quality\"\u003c\/strong\u003e - \u003cem\u003eS. Tanaka, Japan\u003c\/em\u003e\u003cbr\u003e\"Very stable performance. J740 grade is perfect for balancing hardness and toughness in CNC production.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Highly Recommended\"\u003c\/strong\u003e - \u003cem\u003eJames P., UK\u003c\/em\u003e\u003cbr\u003e\"Fast shipping and authentic parts. The 2.25mm width is exactly what we needed for specific hydraulic grooves.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3225F suitable for high-speed parting?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is best optimized for precision 2.25mm grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this 2.25mm insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Always match the seat size for Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why choose J740 over CVD grades for grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for narrow grooving where vibration is more likely than in heavy CVD turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD vs. CVD in Precision Grooving\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156213104812,"sku":"JTGR3225F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3225F_J740_2.25mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773802281"},{"product_id":"tungaloy-jtgr3250f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3250F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3250F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 2.5mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 2.5mm insert for precision grooving in heat-resistant alloys?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3250F J740\u003c\/strong\u003e is a premier \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for high-accuracy external grooving. Utilizing the high-performance \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert excels in machining tough materials like 304\/316 stainless steel, titanium, and heat-resistant superalloys. The 2.5mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e provide exceptional edge sharpness and chip evacuation, which is critical for preventing built-up edge (BUE) in precision \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it is the industry standard for maintaining tight tolerances and superior surface finish Ra, ensuring consistent \u003cstrong\u003etool life\u003c\/strong\u003e in high-demand production cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3250F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3250\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e2.5mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat\/Fine\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0984 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0078 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3250F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.098F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Highly dependent on material group)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.13 mm\/rev (Optimize for 2.5mm stability)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is highly recommended for 2.5mm slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 2.50mm precision grooving, ensure tool center height is aligned perfectly to prevent rubbing. J740 provides high toughness for interrupted grooving cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Standard for 2.5mm Grooves\"\u003c\/strong\u003e - \u003cem\u003eMatthias S., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3250F J740 is our absolute standard for hydraulic components. Consistent tool life and very stable width bottom.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for Stainless 316\"\u003c\/strong\u003e - \u003cem\u003eJ. Rossi, Italy\u003c\/em\u003e\u003cbr\u003e\"Handles tough stainless with ease. No smearing on the material, just clean and shiny grooves. PVD coating is top tier.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Aerospace Parts\"\u003c\/strong\u003e - \u003cem\u003eDavid L., USA\u003c\/em\u003e\u003cbr\u003e\"Used on Swiss machines for Inconel. The J740 grade handles heat much better than other brands I've tested.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Quality Made in Japan\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy quality. Maintains precision even after long shifts. Highly recommended for CNC production.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable Performance\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Fast shipping and genuine product. The F breaker geometry is perfect for maintaining low cutting forces and chip control.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3250F suitable for parting-off?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameter stock, its flat geometry (F) is best optimized for precision grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this 2.5mm insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Ensure you match the seat size for Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why choose J740 over CVD grades for grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for precision grooving where vibration is more likely than in heavy CVD turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD Coating Advantage\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156215169196,"sku":"JTGR3250F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3250F_J740_2.5mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773802415"},{"product_id":"tungaloy-jtgr3275f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3275F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3275F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 2.75mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the most reliable 2.75mm insert for grooving tough alloys?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3275F J740\u003c\/strong\u003e is a high-performance \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e specifically engineered for precision external grooving operations. Utilizing the industry-leading \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert provides exceptional wear resistance and edge toughness when machining difficult materials like 304\/316 stainless steel, heat-resistant alloys, and titanium. The 2.75mm cutting width (CW) and \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e (Flat geometry) ensure superior chip evacuation and edge sharpness, which is critical for preventing built-up edge (BUE) in \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As an authentic Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it is the professional choice for maintaining tight tolerances and superior surface finish Ra in high-demand production environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3275F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3275\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e2.75mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFine\/Flat\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.75 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1083 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0078 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3275F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.108F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 40 - 140 m\/min (Material dependent)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.14 mm\/rev (Optimized for 2.75mm width)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant recommended for chip control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 2.75mm slots, verify center height to prevent deflection. J740 provides high toughness for interrupted grooving cycles.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Standard for 2.75mm Snap Ring Grooves\"\u003c\/strong\u003e - \u003cem\u003eMatthias W., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3275F J740 is our absolute standard for hydraulic components. Consistent tool life and very stable width.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect for Stainless 316\"\u003c\/strong\u003e - \u003cem\u003eJ. Rossi, Italy\u003c\/em\u003e\u003cbr\u003e\"Handles 304 and 316 stainless steel with ease. No smearing on the material, just clean and shiny grooves. PVD coating is top tier.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for Aerospace\"\u003c\/strong\u003e - \u003cem\u003eDavid L., USA\u003c\/em\u003e\u003cbr\u003e\"Used on Swiss machines for Inconel parts. The J740 grade handles heat much better than other brands I have used in the past.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Authentic Quality\"\u003c\/strong\u003e - \u003cem\u003eT. Nguyen, Vietnam\u003c\/em\u003e\u003cbr\u003e\"Authentic Tungaloy quality. Maintains precision even after long shifts. Highly recommended for CNC production line.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable Performance\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Fast shipping and genuine product. The F breaker geometry is perfect for maintaining low cutting forces.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is JTGR3275F suitable for parting-off?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is best optimized for precision grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder do I need for this 2.75mm insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is designed for Tungaloy J-Series external holders, such as the JCTEL\/R series. Match the seat size for Series 3 inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why use J740 over CVD grades for grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for narrow grooving where vibration is more likely than heavy CVD turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: PVD Coating Advantage\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e represents the peak of edge toughness. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of \u003cstrong\u003eCNC grooving\u003c\/strong\u003e. Protect your \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e with filtered coolant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156217331884,"sku":"JTGR3275F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3275F_J740_2.75mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773802577"},{"product_id":"tungaloy-jtgr3300f-j740-precision-external-grooving-insert","title":"Tungaloy JTGR3300F J740 PVD Coated External Grooving Insert","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy JTGR3300F J740 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision 3.0mm External Grooving | PVD J740 Carbide | Made in Japan\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eWhat is the best 3.0mm insert for stable grooving in stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy JTGR3300F J740\u003c\/strong\u003e is a versatile \u003cstrong\u003eindexable grooving tool\u003c\/strong\u003e optimized for standard 3.0mm external grooving applications. Featuring the high-toughness \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert is the primary choice for machining 300-series stainless steels, titanium, and cobalt-chrome alloys. The 3.0mm cutting width (CW) coupled with the \u003cstrong\u003eF-type chipbreaker\u003c\/strong\u003e (Flat geometry) provides superior edge sharpness and vibration resistance. This is critical for preventing built-up edge (BUE) and maintaining dimensional stability in \u003cstrong\u003eCNC machining\u003c\/strong\u003e. As a genuine Japan-made \u003cstrong\u003egrooving insert\u003c\/strong\u003e, it ensures high tool life and an exceptional surface finish Ra.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eDecoding the JTGR3300F Technical Nomenclature\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eMounting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e3300\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e3.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eF\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFlat Geometry\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eJ740\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Specs: Metric vs. Imperial Units\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Parameter\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Unit\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCutting Width (CW)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1181 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0078 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR3300F\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eJTGR 3.118F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eSeat Size\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eSeries 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters (J740 Grade)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 45 - 150 m\/min (Depending on alloy group)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.04 - 0.15 mm\/rev (Stable for 3.0mm width)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant:\u003c\/strong\u003e High-pressure coolant is ideal for deep grooving.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: Ensure the tool holder shank is as short as possible to maximize rigidity for 3.0mm operations. J740 grade excels in preventing edge chipping.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Customer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable 3.0mm Performance\"\u003c\/strong\u003e - \u003cem\u003eLars M., Germany\u003c\/em\u003e\u003cbr\u003e\"The JTGR3300F is my go-to for standard grooving. The J740 grade holds up incredibly well against heat.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent Surface Finish\"\u003c\/strong\u003e - \u003cem\u003eGiorgio P., Italy\u003c\/em\u003e\u003cbr\u003e\"Very clean grooves on stainless 304. No vibration even at high speeds. Tungaloy Japan quality is obvious.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great Chip Management\"\u003c\/strong\u003e - \u003cem\u003eRobert T., USA\u003c\/em\u003e\u003cbr\u003e\"The F geometry breaks the chips perfectly in our CNC lathes. Reduced our downtime significantly.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Long Tool Life\"\u003c\/strong\u003e - \u003cem\u003eNguyen V., Vietnam\u003c\/em\u003e\u003cbr\u003e\"We get 30% more parts per edge compared to our previous brand. J740 is very tough for mass production.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Authentic Product\"\u003c\/strong\u003e - \u003cem\u003eDavid S., Australia\u003c\/em\u003e\u003cbr\u003e\"Shipped fast. Genuine Tungaloy. The 3.0mm width is held with high precision across the entire box.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical Tooling Q\u0026amp;A\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use JTGR3300F for parting-off 20mm bars?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: It is primarily designed for external grooving. While it can handle light parting, for dedicated high-speed parting, Tungaloy's dedicated parting series is recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holder is compatible with this insert?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: Use the JCTEL\/R external holder series. Always ensure the seat size matches the Series 3 designation of the insert.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Why choose PVD J740 over CVD grades?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: PVD coatings like J740 are thinner and sharper, providing higher resistance to edge build-up and chipping during precision grooving compared to thicker CVD coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Insight: Precision Grooving Logic\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740\u003c\/strong\u003e grade acts as a universal problem-solver for stainless steel. While \u003cstrong\u003eCVD coatings\u003c\/strong\u003e favor heat resistance in heavy turning, J740 provides the sharp edge stability required for the 3.0mm \u003cstrong\u003eCNC grooving\u003c\/strong\u003e cycles. Always prioritize rigidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Japan Tooling Excellence\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43156219658412,"sku":"JTGR3300F J740","price":200.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_JTGR3300F_J740_3.0mm_Precision_External_Grooving_Insert_for_CNC_Lathes.jpg?v=1773812365"},{"product_id":"jvgr150f-j740","title":"JVGR150F J740 (10pcs)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCoated ：J740  \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eDesignation: JVGR150F J740\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eW+0.05:1.5, \u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003e \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eød:7.94, \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eT:3.18,  G:6, \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eMax. \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003egroove \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003edepth:5.5\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eGarde：J740  Coating：Main composition (\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTiN\u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003e)\u003cbr data-mce-fragment=\"1\"\u003eFeature：\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eUltra-fine-grain cemented carbide coated with TiN-based compound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JVGR.png?v=1710991572\"\u003e\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43156225261740,"sku":"JVGR150F J740","price":178.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JVGR150FJ740.jpg?v=1710991749"},{"product_id":"jvgr200f-j740","title":"JVGR200F J740 (10pcs)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCoated ：J740  \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eDesignation: JVGR200F J740\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eW+0.05:2, \u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003eød:7.94, \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eT:3.18,  G:6, \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003eMax. \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003egroove \u003c\/b\u003e\u003cb data-mce-fragment=\"1\"\u003edepth:5.5\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eGarde：J740  Coating：Main composition (\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eTiN\u003c\/strong\u003e\u003cb data-mce-fragment=\"1\"\u003e)\u003cbr data-mce-fragment=\"1\"\u003eFeature：\u003c\/b\u003e\u003cstrong data-mce-fragment=\"1\"\u003eUltra-fine-grain cemented carbide coated with TiN-based compound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTGR.png?v=1710987155\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JTGR.png?v=1710987155\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43156226375852,"sku":"JVGR200F J740","price":183.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/JVGR200FJ740.jpg?v=1710991905"},{"product_id":"tungaloy-wge20-wge20r-gh730-grooving-insert-pvd-carbide","title":"Tungaloy WGE20 \/ WGE20R GH730 Grooving Inserts | PVD Coated Carbide for Steel \u0026 Stainless","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy WGE20 \/ WGE20R GH730 Grooving Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Stability PVD Carbide | Precision Grooving \u0026amp; Parting\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003e\"Which insert is most reliable for precision grooving in difficult-to-cut materials like stainless steel?\"\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy WGE20 and WGE20R\u003c\/strong\u003e in \u003cstrong\u003eGH730 grade\u003c\/strong\u003e are high-precision grooving inserts designed for exceptional stability. Featuring a specialized \u003cstrong\u003ePVD coating\u003c\/strong\u003e on a micro-grain carbide substrate, the GH730 grade provides superior resistance to notch wear and built-up edge, making it the industry standard for machining \u003cstrong\u003eStainless Steel\u003c\/strong\u003e and \u003cstrong\u003eHeat-Resistant Alloys\u003c\/strong\u003e. Whether you require the neutral WGE20 or the right-handed WGE20R, these inserts feature a robust geometry that ensures excellent chip evacuation even in narrow 2mm grooves, maintaining workpiece integrity and tool longevity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eModel Code Identification\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eW\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eDouble-Ended\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003e20\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e2.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand*\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eGH730\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center; font-size: 12px; margin-top: 10px;\"\u003e*R denotes Right-Hand orientation; Neutral models omit this letter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eGH730 Wear Resistance\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe multi-layer PVD coating is optimized for toughness. It prevents fracture during interrupted grooving and provides a smooth surface for chip flow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003e2mm Precision Edge\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eGround with high accuracy to ensure precise groove widths and sharp corners, vital for hydraulic and automotive components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eOptimized Evacuation\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe top-face geometry forces chips to curl and break quickly, preventing \"chip nesting\" which can lead to tool breakage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Data \u0026amp; Dimensions\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (Metric)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (Inch)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eWGE20 \/ WGE20R\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0787\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.15 - 0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 25px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch4 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 5px;\"\u003eRecommended Cutting Conditions (GH730)\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; color: white; margin-top: 10px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003e\u003cstrong\u003eWorkpiece Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eSpeed (Vc m\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eFeed (f mm\/rev)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eStainless Steel (304\/316)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e60 - 130\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.03 - 0.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eHeat Resistant Alloys\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e25 - 60\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.03 - 0.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; text-align: center;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eCompatible Tool Holders\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; border-radius: 8px; display: inline-block;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold;\"\u003eCompatible with Tungaloy WGE Holder Series (JS\/CF Type)\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?type=product\u0026amp;options%5Bunavailable_products%5D=last\u0026amp;options%5Bprefix%5D=last\u0026amp;q=CGWSR\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eBrowse Precision Grooving Holders\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003ePrimary Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003ePrecision external grooving for seal rings.\u003c\/li\u003e\n\u003cli\u003eParting-off small diameter tubes and bars.\u003c\/li\u003e\n\u003cli\u003eMachining difficult stainless steel medical components.\u003c\/li\u003e\n\u003cli\u003eAutomotive fuel system parts requiring narrow tolerances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eEquipment Compatibility\u003c\/h3\u003e\n\u003cp\u003eUniversal fit for CNC lathes, multi-spindle machines, and Swiss-type turn-mill centers. Excellent performance on Mori Seiki, Okuma, and Citizen machines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTungaloy Grooving Grade Guide\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-top: 15px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; background: white;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSubstrate\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBest Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eGH730\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePVD Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless Steel \u0026amp; Superalloys.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eT9125\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCVD Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh-speed steel turning.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eNS9530\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCermet\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFinishing \/ Mirror Gloss.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #fff;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003ePartner with BEYOND Industrial\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003e100% Genuine\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eDirect Tungaloy Source\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eGlobal Logistics\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eFast Export via HK\/CN\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eExpert Support\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eTechnical Director Consultation\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eCustomer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Best for 316 Stainless\"\u003c\/strong\u003e - \u003cem\u003eRobert K., USA\u003c\/em\u003e\u003cbr\u003e\"We've struggled with grooving 316 stainless for years. The GH730 grade from Tungaloy has significantly improved our tool life. No more edge chipping.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect Parting\"\u003c\/strong\u003e - \u003cem\u003eStefan M., Germany\u003c\/em\u003e\u003cbr\u003e\"The WGE20 neutral insert is very stable. Even with higher feed rates, the finish remains consistent. High-quality PVD coating.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Fast Shipping\"\u003c\/strong\u003e - \u003cem\u003eHiroshi T., Japan\u003c\/em\u003e\u003cbr\u003e\"Received genuine Tungaloy inserts quickly. The performance in Inconel was much better than our previous supplier.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px; margin-bottom: 10px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: What is the difference between WGE20 and WGE20R?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: WGE20 is a neutral insert, whereas WGE20R is right-handed. Choice depends on your holder and the direction of your lathe spindle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Can I use GH730 for steel?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Yes, GH730 is a versatile grade. While optimized for stainless and alloys, it performs excellently in alloy steels where toughness is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003ePro Machining Tip: Coolant is Mandatory\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen grooving stainless steel with **GH730**, ensure high-pressure coolant is directed at the cutting zone. This prevents thermal shock and keeps the PVD coating intact for maximum life. **BEYOND CNC** - Your Precision Partner.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #888; text-align: center; margin-top: 10px;\"\u003e© Authored by Beyond Li - CNC Technical Director\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"WGE20 GH730","offer_id":46127285076140,"sku":"WGE20 GH730","price":126.8,"currency_code":"USD","in_stock":true},{"title":"WGE20R GH730","offer_id":46127285108908,"sku":"WGE20 GH731","price":126.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_WGE20_WGE20R_GH730_PVD_Coated_External_Grooving_Insert.jpg?v=1775827135"},{"product_id":"tungaloy-wge30-wge30r-gh730-3mm-grooving-insert","title":"Tungaloy WGE30 \/ WGE30R GH730 Grooving Inserts | 3mm PVD Coated Carbide for Stainless","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy WGE30 \/ WGE30R GH730 Grooving Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eProfessional 3mm Grooving | High-Toughness GH730 PVD Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003e\"Which 3mm insert provides the best stability for grooving stainless steel and superalloys?\"\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy WGE30 and WGE30R\u003c\/strong\u003e in \u003cstrong\u003eGH730 grade\u003c\/strong\u003e are high-precision external grooving and parting-off inserts. Engineered for the most demanding materials, the \u003cstrong\u003eGH730 PVD coated carbide\u003c\/strong\u003e offers an ideal balance of hardness and fracture toughness. This grade is specifically designed to resist notch wear and built-up edge (BUE) when machining \u003cstrong\u003eStainless Steel\u003c\/strong\u003e and \u003cstrong\u003eHeat-Resistant Superalloys\u003c\/strong\u003e. Whether using the neutral WGE30 or the right-handed WGE30R, the unique chipbreaker geometry ensures stable chip breaking across a wide range of feed rates, protecting your workpiece from chip-induced scratches and ensuring long, predictable tool life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eModel Code Identification\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eW\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eDouble-Ended\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003e30\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e3.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand*\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eGH730\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center; font-size: 12px; margin-top: 10px;\"\u003e*R denotes Right-Hand orientation; Neutral models omit the 'R' suffix.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eMulti-Layer PVD Coating\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe GH730 grade features a micro-grain carbide substrate with advanced PVD coating, offering extreme thermal stability and resistance to plastic deformation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003ePrecision Width (3mm)\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eGround to strict tolerances to ensure accurate groove dimensions and reliable performance in both automatic and manual CNC turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eDouble-Ended Economy\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe \"W\" series design offers two cutting edges per insert, effectively doubling your productivity while reducing tool costs per component.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eTechnical Data \u0026amp; Standards\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (Metric)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (Imperial)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eWGE30 \/ WGE30R\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1181\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 25px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch4 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 5px;\"\u003eCutting Speed \u0026amp; Feed Rates\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; color: white; margin-top: 10px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003e\u003cstrong\u003eWorkpiece Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eSpeed (Vc m\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eFeed (f mm\/rev)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eStainless Steel (300\/400)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e70 - 150\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.05 - 0.15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eHigh-Temp Alloys (Inconel)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e30 - 70\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.04 - 0.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; text-align: center;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eAssociated Tooling\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; border-radius: 8px; display: inline-block;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold;\"\u003eCompatible with Tungaloy CTEL\/R or JS-type External Holders\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?type=product\u0026amp;options%5Bunavailable_products%5D=last\u0026amp;options%5Bprefix%5D=last\u0026amp;q=CGWSR\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eView Compatible Grooving Holders\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003ePrimary Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eExternal grooving on high-precision stainless shafts.\u003c\/li\u003e\n\u003cli\u003eParting-off tubes and bars up to the specified maximum depth.\u003c\/li\u003e\n\u003cli\u003eMachining grooves for snap rings and seal rings.\u003c\/li\u003e\n\u003cli\u003eSuitable for both high-pressure and low-pressure coolant setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMachine Compatibility\u003c\/h3\u003e\n\u003cp\u003eUniversal compatibility with CNC Lathes and Turn-Mill centers (Mazak, Okuma, DMG MORI, Haas). Also highly effective for Swiss-type machining in 3mm widths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTungaloy Material Matrix\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-top: 15px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; background: white;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSubstrate\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eOptimized For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eGH730\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePVD Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless \u0026amp; Heat-Resistant Alloys.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eT9225\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCVD Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGeneral Steel Turning.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eNS9530\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCermet\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh Speed Finishing \/ Gloss.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #fff;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eThe BEYOND Difference\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eGenuine Tungaloy\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e100% Original Factory Stock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eTechnical Edge\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eDirector-Level Machining Advice\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eGlobal Hub\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eEfficient Hong Kong Logistics\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Industry Feedback\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Stable and Reliable\"\u003c\/strong\u003e - \u003cem\u003eDavid L., USA\u003c\/em\u003e\u003cbr\u003e\"We use the WGE30 for all our 3mm grooves in stainless. GH730 holds up very well compared to other brands we've tested. No edge chipping.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Great Price\/Edge\"\u003c\/strong\u003e - \u003cem\u003eKlaus F., Germany\u003c\/em\u003e\u003cbr\u003e\"Two edges per insert make these very economical. The parting cuts are clean and the accuracy of the 3mm width is spot on.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Professional Service\"\u003c\/strong\u003e - \u003cem\u003eYuki M., Japan\u003c\/em\u003e\u003cbr\u003e\"Always genuine parts. The technical support from Beyond helped us optimize our feed rates for tougher alloy grooving.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px; margin-bottom: 10px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Can WGE30R be used in a neutral holder?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: No, WGE30R (Right Hand) must be paired with a corresponding Right-Hand holder to ensure proper clearance and chip flow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Is GH730 good for interrupted grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Yes. GH730 is a PVD grade with a tough substrate specifically engineered to handle the shocks of light to medium interrupted cuts in stainless.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eIndustrial Tip: Chip Evacuation\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen grooving deep bores or 3mm slots, use **constant surface speed (CSS)** and ensure clear chip evacuation. **GH730**'s coating prevents chip welding—keep your coolant pointed at the edge for best results. **BEYOND CNC** - Your Tooling Experts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #888; text-align: center; margin-top: 10px;\"\u003e© Authored by Beyond Li - Technical Director\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"WGE30 GH730","offer_id":46127284781228,"sku":"WGE30 GH730","price":126.8,"currency_code":"USD","in_stock":true},{"title":"WGE30R GH730","offer_id":46127284813996,"sku":"WGE30 GH731","price":126.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_WGE30_WGE30R_GH730_External_Grooving_and_Parting_Insert.jpg?v=1775827881"},{"product_id":"tungaloy-wge50-gh730-5mm-grooving-carbide-insert","title":"Tungaloy WGE50 GH730 External Grooving Insert | 5mm PVD Carbide for Steel \u0026 Stainless","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy WGE50 GH730 Grooving Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHeavy-Duty 5mm Grooving | High-Toughness GH730 PVD Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003e\"Which 5mm insert is best for heavy-duty grooving in difficult-to-cut stainless alloys?\"\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy WGE50 GH730\u003c\/strong\u003e is a premium 5.0mm width double-ended insert engineered for maximum stability in external grooving and parting-off operations. Designed to handle high-load machining, the \u003cstrong\u003eGH730 PVD coated carbide grade\u003c\/strong\u003e provides an exceptional balance of wear resistance and fracture toughness. This makes it the go-to choice for \u003cstrong\u003eStainless Steel\u003c\/strong\u003e and \u003cstrong\u003eHeat-Resistant Superalloys\u003c\/strong\u003e. Its specialized chipbreaker geometry ensures that even under heavy depths of cut, chips are effectively curled and broken, preventing surface damage and ensuring the structural integrity of the tool during intensive production cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eModel Specification Decoder\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eW\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eDouble-Ended\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003e50\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e5.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eGH730\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eGH730 PVD Durability\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eAdvanced multi-layer PVD coating designed to combat notch wear and chemical oxidation. Ideal for materials with high thermal resistance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eHeavy-Duty 5mm Edge\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eReinforced 5mm width providing high rigidity. Perfect for large diameter parting-off and deep radial grooving without vibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eRepeatable Indexing\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003ePrecision-ground seating ensures that when flipping to the second edge, the centerline height remains perfectly accurate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eDimensions \u0026amp; Standards\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eWidth (Inch)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eWGE50 GH730\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e5.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1969\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.30 - 0.40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 25px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch4 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 5px;\"\u003eCutting Speeds \u0026amp; Feed Rates\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; color: white; margin-top: 10px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003e\u003cstrong\u003eWorkpiece Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eSpeed (Vc m\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eFeed (f mm\/rev)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eStainless Steel (Austenitic)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e50 - 120\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.08 - 0.22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eAlloy Steel (P-Type)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e90 - 170\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.10 - 0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; text-align: center;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMatching Tool Holders\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; border-radius: 8px; display: inline-block;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold;\"\u003eCompatible with Tungaloy CTEL\/R or JS-type External Holders (5mm Slot)\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?type=product\u0026amp;options%5Bunavailable_products%5D=last\u0026amp;options%5Bprefix%5D=last\u0026amp;q=CGWSR\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eView 5mm Grooving Tool Holders\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eParting-off large diameter bars in heavy industrial lathes.\u003c\/li\u003e\n\u003cli\u003eRadial grooving in hydraulic cylinders and piston shafts.\u003c\/li\u003e\n\u003cli\u003eTurning-grooving hybrid cycles for fast stock removal.\u003c\/li\u003e\n\u003cli\u003eHigh-pressure coolant environments for aerospace alloys.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMachine Compatibility\u003c\/h3\u003e\n\u003cp\u003eOptimized for high-torque CNC Turning Centers (Mori Seiki, Mazak, Doosan, Haas). Highly effective on machines with high-pressure coolant capability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTungaloy Grooving Grade Guide\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-top: 15px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; background: white;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCoating\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eGH730\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePVD\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless Steel \u0026amp; Heat Resistant Alloys.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eT9225\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCVD\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh Speed Steel Turning.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eNS9530\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUncoated\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSteel Finishing \/ Gloss Mirror Surface.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #fff;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003ePartnering with BEYOND\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eCertified Authentic\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e100% Genuine Tungaloy Stock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eDirector Support\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eTechnical Advice from Experts\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eGlobal Hub\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eEfficient Hong Kong Logistics\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eCustomer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Workhorse for Stainless\"\u003c\/strong\u003e - \u003cem\u003eJames H., USA\u003c\/em\u003e\u003cbr\u003e\"We use the WGE50 GH730 for our heavy hydraulic shaft parting. It is a workhorse. The GH730 grade handles the heat build-up in 316 stainless better than any other insert.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Stable at 5mm\"\u003c\/strong\u003e - \u003cem\u003eDieter W., Germany\u003c\/em\u003e\u003cbr\u003e\"Excellent stability in deep grooves. No chatter at all. BEYOND provided technical parameters that improved our cycle time by 15%.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Professional and Fast\"\u003c\/strong\u003e - \u003cem\u003eTakumi S., Japan\u003c\/em\u003e\u003cbr\u003e\"Ordering from Beyond is easy. The parts are always original and the shipping is faster than many local suppliers.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px; margin-bottom: 10px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Can I use WGE50 for plunge-turning?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Yes, but ensure your feed rate is adjusted. The GH730 grade is tough enough for light turning, but primarily optimized for radial grooving.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: What coolant setup is best for GH730?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: High-pressure through-tool coolant is ideal to prevent chip re-cutting and to maximize the lifespan of the PVD coating in stainless.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eIndustrial Tip: Monitoring Edge Wear\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen machining high-temp alloys with **GH730**, watch for notch wear at the DOC line. If noticed, slightly vary your depth of cut between passes to distribute the wear. **BEYOND CNC** - Your Industrial Tooling Expert.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #888; text-align: center; margin-top: 10px;\"\u003e© Authored by Beyond Li - CNC Technical Director\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"Default Title","offer_id":43177746759852,"sku":"WGE50 GH730","price":134.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_WGE50_GH730_5.0mm_Double-Ended_External_Grooving_Insert.jpg?v=1775828583"},{"product_id":"tungaloy-wge40-wge40r-gh730-4mm-grooving-insert","title":"Tungaloy WGE40 \/ WGE40R GH730 Grooving Inserts | 4mm PVD Carbide for Stainless \u0026 Steel","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy WGE40 \/ WGE40R GH730 Grooving Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Load 4mm Grooving | Superior Toughness GH730 PVD Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003e\"Which 4mm insert is most reliable for high-stability grooving in tough alloy steels?\"\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy WGE40 and WGE40R\u003c\/strong\u003e in \u003cstrong\u003eGH730 grade\u003c\/strong\u003e represent the industrial standard for medium-width external grooving and parting-off. Designed for heavy-duty applications, the \u003cstrong\u003e4.0mm width\u003c\/strong\u003e geometry combined with the \u003cstrong\u003eGH730 PVD coated carbide\u003c\/strong\u003e provides a robust solution for machining \u003cstrong\u003eStainless Steel\u003c\/strong\u003e, \u003cstrong\u003eCarbon Steel\u003c\/strong\u003e, and \u003cstrong\u003eHeat-Resistant Superalloys\u003c\/strong\u003e. The GH730 grade utilizes a high-toughness micro-grain substrate that absorbs mechanical shock during interrupted cuts, while the specialized PVD coating resists thermal cracking and chemical wear. Whether you choose the neutral WGE40 or the right-handed WGE40R, you are guaranteed superior chip control and dimensional accuracy in every cycle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eModel Code Decoder\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eW\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eDouble-Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003e40\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e4.0mm Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand*\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eGH730\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePVD Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center; font-size: 12px; margin-top: 10px;\"\u003e*R indicates Right-Handed; Neutral models (WGE40) have no direction suffix.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eGH730 Extreme Durability\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eAn advanced PVD coating optimized for toughness. It effectively stops crack propagation and provides an ultra-smooth surface to prevent chip welding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eHeavy-Duty Chipbreaker\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe geometry is reinforced for the 4mm width, enabling efficient chip curling and breaking even at high feed rates in ductile materials like 304\/316 Stainless.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eRigid Indexing\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe double-ended \"W\" design ensures highly repeatable center-line heights and rigid clamping, reducing vibration in deep grooves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eDimensional Standards\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eISO Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Width\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Width\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eWGE40 \/ WGE40R\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1575\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 - 0.30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 25px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch4 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 5px;\"\u003eStandard Machining Parameters\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; color: white; margin-top: 10px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003e\u003cstrong\u003eWorkpiece Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eSpeed (Vc m\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eFeed (f mm\/rev)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eCarbon \u0026amp; Alloy Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e100 - 180\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.08 - 0.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eStainless Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e60 - 140\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.05 - 0.15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; text-align: center;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMatching Tooling\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; border-radius: 8px; display: inline-block;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold;\"\u003eCompatible with Tungaloy CTEL\/R or JS-Series 4mm Holders\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?type=product\u0026amp;options%5Bunavailable_products%5D=last\u0026amp;options%5Bprefix%5D=last\u0026amp;q=CGWSR\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eBrowse Professional Grooving Holders\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eHeavy-duty external grooving in oil and gas components.\u003c\/li\u003e\n\u003cli\u003eParting-off larger diameter steel tubes and solid bars.\u003c\/li\u003e\n\u003cli\u003eMachining wide grooves for automotive transmission shafts.\u003c\/li\u003e\n\u003cli\u003eEfficient stock removal in grooving-turning hybrid cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eEquipment Compatibility\u003c\/h3\u003e\n\u003cp\u003eSeamlessly integrates with all major CNC turning centers (Okuma, Mori Seiki, Mazak, Doosan). Excellent rigidity for high-torque machines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTungaloy Grade Optimization\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-top: 15px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; background: white;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSubstrate\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePrimary Focus\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eGH730\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePVD Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUltimate Toughness \/ Stainless Alloys.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eT9225\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eCVD Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh-Speed General Steel.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eUX30\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUncoated Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAluminum \u0026amp; Non-Ferrous.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #fff;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eIndustrial Partner: BEYOND\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eCertified Authentic\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e100% Genuine Tungaloy Stock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eIndustrial Expertise\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eTechnical Director Level Support\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eRapid Export\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eStrategic HK Logistics Hub\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eVerified Industry Feedback\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Excellent in 4140 Steel\"\u003c\/strong\u003e - \u003cem\u003eMike R., USA\u003c\/em\u003e\u003cbr\u003e\"The WGE40 R in GH730 grade is my go-to for parting 4140 pre-hardened steel. The tool life is double what we got from previous European brands.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Rock Solid 4mm Grooves\"\u003c\/strong\u003e - \u003cem\u003eLars E., Germany\u003c\/em\u003e\u003cbr\u003e\"Very rigid design. We get perfect flat bottoms on our grooves and zero chatter issues even at higher feeds.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great Support\"\u003c\/strong\u003e - \u003cem\u003eMatteo V., Italy\u003c\/em\u003e\u003cbr\u003e\"Beyond helped us choose the GH730 for our stainless project. It solved our chip control problems instantly. Highly recommended.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px; margin-bottom: 10px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Should I use WGE40 (Neutral) or WGE40R (Right Hand)?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: This depends on your holder and lathe setup. If you are using a standard right-hand external holder, choose WGE40R for optimized clearance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Can I use this for longitudinal turning?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: While primarily a grooving insert, the \"W\" series can handle light turning, but for heavy lateral loads, we recommend a dedicated turning-grooving insert.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003ePro Machining Tip: Depth of Cut (ap)\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen grooving with 4mm inserts like the **WGE40**, always ensure your feed rate is high enough to snap the chip. If the chip bird-nests, increase the feed by 10%—the **GH730** grade has the toughness to handle it. **BEYOND CNC** - Industrial Strength Precision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #888; text-align: center; margin-top: 10px;\"\u003e© Authored by Beyond Li - CNC Technical Director\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"WGE40 GH730","offer_id":46127288123564,"sku":"WGE40R GH730","price":134.85,"currency_code":"USD","in_stock":true},{"title":"WGE40R GH730","offer_id":46127288156332,"sku":"WGE40R GH731","price":134.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_WGE40_WGE40R_GH730_4mm_External_Grooving_and_Parting_Insert.jpg?v=1775828274"},{"product_id":"tungaloy-wge-series-t9125-steel-grooving-inserts","title":"Tungaloy WGE30 WGE40 WGE50 T9125 Grooving Inserts | CVD Carbide for Steel Machining","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; max-width: 1000px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: text;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTungaloy WGE30 \/ WGE40 \/ WGE50 T9125 Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Speed Steel Grooving | Premium CVD Coated T9125 Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003e\"Which insert is most efficient for high-velocity grooving and parting in carbon and alloy steels?\"\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy WGE Series (30, 40, 50)\u003c\/strong\u003e in \u003cstrong\u003eT9125 grade\u003c\/strong\u003e is the ultimate solution for high-efficiency steel machining. Unlike PVD grades, the \u003cstrong\u003eT9125 CVD coated carbide\u003c\/strong\u003e is engineered specifically to withstand the intense heat generated during high-speed \u003cstrong\u003eSteel\u003c\/strong\u003e and \u003cstrong\u003eCast Iron\u003c\/strong\u003e grooving. Featuring Tungaloy’s \"PremiumTec\" surface technology, these inserts offer a smooth coating layer that minimizes friction and prevents chip welding. Available in 3mm, 4mm, and 5mm widths, the WGE geometry combined with the T9125 grade ensures exceptional chip control and edge reliability, significantly reducing cycle times in mass production environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eIndustrial Code Identification\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eW\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eDouble-Ended\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eExternal\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003e30\/40\/50\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eWidth (mm)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f;\"\u003eT9125\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eCVD Steel Grade\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eT9125 CVD Optimization\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eHigh-thickness alumina coating layer provides extreme heat resistance, allowing for much higher cutting speeds (Vc) compared to traditional PVD grades.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eBalanced Chipbreaker\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eThe WGE chipbreaker is designed for general-purpose steel grooving, ensuring stable chip curling across low to high feed ranges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px; border: 1px solid #47479F; padding: 20px; border-radius: 8px;\"\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 0;\"\u003eEnhanced Edge Strength\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eSpecialized edge preparation prevents micro-chipping, ensuring a consistent finish and dimensional accuracy on every part.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eDimensions \u0026amp; Metric\/Imperial Conversion\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Width\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Width\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eWGE30 T9125\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1181\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eWGE40 T9125\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1575\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eWGE50 T9125\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e5.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.1969\"\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 25px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch4 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 5px;\"\u003eRecommended Cutting Parameters (T9125 Grade)\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; color: white; margin-top: 10px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003e\u003cstrong\u003eWorkpiece Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eSpeed (Vc m\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eFeed (f mm\/rev)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eLow Carbon Steel (1018\/1020)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e150 - 250\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.05 - 0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003eAlloy Steel (4140\/4340)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e120 - 200\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003e0.05 - 0.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; text-align: center;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eRequired Tooling\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; border-radius: 8px; display: inline-block;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold;\"\u003eCompatible with Tungaloy CTEL\/R or JS-type External Grooving Holders\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?type=product\u0026amp;options%5Bunavailable_products%5D=last\u0026amp;options%5Bprefix%5D=last\u0026amp;q=CGWSR\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eFind Precision Grooving Holders Here\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; display: flex; flex-wrap: wrap; gap: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMain Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003eHigh-speed parting-off of steel bars.\u003c\/li\u003e\n\u003cli\u003eDeep external radial grooving.\u003c\/li\u003e\n\u003cli\u003eMachining snap ring grooves on automotive drive shafts.\u003c\/li\u003e\n\u003cli\u003eLarge-batch production requiring long tool life in steel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 280px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMachine Suitability\u003c\/h3\u003e\n\u003cp\u003eBest suited for high-power CNC lathes and multi-tasking machines (Mazak, Okuma, DMG Mori, Doosan) where high cutting speeds are achievable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #fff;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003ePartnering with BEYOND\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003e100% Authentic\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eGenuine Tungaloy Global Sourcing\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eIndustry Experts\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eTechnical Director Level Consulting\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; text-align: center; border-radius: 6px;\"\u003e\n\u003cstrong\u003eFast Logistics\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eDirect Export from HK Center\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eCustomer Reviews\u003c\/h3\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Massive Speed Improvement\"\u003c\/strong\u003e - \u003cem\u003eGeorge B., USA\u003c\/em\u003e\u003cbr\u003e\"Switching to T9125 allowed us to bump our surface speed from 140 to 220 m\/min in 1045 steel. Tool life remained identical. Incredible productivity boost.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable for 4mm Grooves\"\u003c\/strong\u003e - \u003cem\u003eHans L., Germany\u003c\/em\u003e\u003cbr\u003e\"The WGE40 in T9125 is very stable. We use it for our transmission components and the consistency from edge to edge is perfect.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Professional Tooling Source\"\u003c\/strong\u003e - \u003cem\u003eMatteo R., Italy\u003c\/em\u003e\u003cbr\u003e\"BEYOND delivers original Tungaloy inserts every time. Their technical advice on CVD vs PVD helped us optimize our steel grooving line.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f; text-align: center;\"\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px; margin-bottom: 10px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: Can I use T9125 for Stainless Steel?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: While it can cut stainless, T9125 is a CVD grade optimized for Steel. For Stainless Steel, we highly recommend the GH730 PVD grade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #47479F; background: #f9f9f9; padding: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0;\"\u003eQ: What is the benefit of CVD over PVD in grooving?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: CVD (Chemical Vapor Deposition) allows for a thicker coating, which provides superior thermal insulation. This enables much faster cutting speeds in carbon and alloy steels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eIndustrial Tip: CVD Grade Maintenance\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen using **T9125**, heat is your friend to some extent—it activates the coating. However, ensure your holder is rigid. Any vibration will crack the CVD layer faster than PVD. **BEYOND CNC** - Your Partner in Industrial Productivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #888; text-align: center; margin-top: 10px;\"\u003e© Authored by Beyond Li - CNC Technical Director\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"WGE30 T9125","offer_id":46127311650988,"sku":"WGE50 T9125","price":144.05,"currency_code":"USD","in_stock":true},{"title":"WGE40 T9125","offer_id":46127311683756,"sku":"WGE50 T9126","price":144.05,"currency_code":"USD","in_stock":true},{"title":"WGE50 T9125","offer_id":46127311716524,"sku":"WGE50 T9127","price":144.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_WGE_series_T9125_CVD_Coated_Steel_Grooving_and_Parting_Inserts.jpg?v=1775829174"},{"product_id":"tungaloy-7gr-series-ns530-internal-grooving-carbide-inserts","title":"Tungaloy 7GR100 7GR150 7GR200 NS530 Internal Grooving Carbide Inserts (1.0mm-2.0mm)","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTUNGALOY 7GR SERIES NS530\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003ePrecision Internal Grooving | 1.0mm, 1.5mm, 2.0mm | NS530 Cermet Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy 7GR Series (100\/150\/200) NS530\u003c\/strong\u003e is a collection of high-performance \u003cstrong\u003einternal grooving inserts\u003c\/strong\u003e designed for ultra-precise slotting and retaining ring applications. Available in widths of 1.0mm, 1.5mm, and 2.0mm, these \u003cstrong\u003eindexable grooving tools\u003c\/strong\u003e are the industry standard for small-bore machining. Featuring the premium \u003cstrong\u003eNS530 Cermet grade\u003c\/strong\u003e, these inserts provide an unmatched surface finish and exceptional chemical stability when machining steel and cast iron. Made in Japan, this series is engineered to eliminate vibration and provide stable \u003cstrong\u003eCNC machining\u003c\/strong\u003e performance in confined internal spaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eTechnical Designation Breakdown\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e7\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eInsert Size\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e100-200\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGroove Width\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eSize Comparison: Metric vs. Imperial\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Width (CW)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Equivalent\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e7GR100 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0394 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e7GR150 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0591 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e7GR200 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.0787 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eNS530 Cermet: The Secret to Mirror Finishes\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eNS530 grade\u003c\/strong\u003e is a titanium-based Cermet that bridges the gap between ceramics and carbide. It is highly resistant to built-up edge (BUE) and oxidation, making it the ideal choice for high-speed finishing. When performing \u003cstrong\u003eprecision machining\u003c\/strong\u003e in medium-to-low carbon steels, this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e industry favorite delivers a surface finish so clean it often eliminates the need for secondary grinding operations.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eInternal Grooving Geometry (槽型)\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e7GR geometry\u003c\/strong\u003e is optimized for low cutting forces. This is essential for internal grooving because internal boring bars are prone to deflection. The sharp edge and positive rake angle ensure clean chips and dimensional accuracy for every \u003cstrong\u003eprecision groove\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cp\u003eOptimized for \u003cstrong\u003eP (Steel) and K (Cast Iron)\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 80 - 160 m\/min (260 - 525 SFM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.08 mm\/rev (0.0012 - 0.0031 ipr)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Note: For the 1.0mm width (7GR100), use the lower end of the feed range to prevent edge chipping.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Reviews\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Best finishing insert\"\u003c\/strong\u003e - \u003cem\u003eMatthias S., Germany\u003c\/em\u003e\u003cbr\u003e\"The 7GR200 NS530 produces a mirror finish on my steel sleeves. Cermet really makes a difference compared to coated carbide for finishing.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Perfect 1.5mm Grooves\"\u003c\/strong\u003e - \u003cem\u003eHiroshi W., Japan\u003c\/em\u003e\u003cbr\u003e\"Consistent results every time. Tungaloy Japan quality is unbeatable for precision internal work. Very stable.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great for mass production\"\u003c\/strong\u003e - \u003cem\u003eRobert T., USA\u003c\/em\u003e\u003cbr\u003e\"We use the 7GR100 for small retaining rings. The tool life is very predictable, which is great for our CNC setup.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Mirror Surface\"\u003c\/strong\u003e - \u003cem\u003eLuca F., Italy\u003c\/em\u003e\u003cbr\u003e\"The surface finish is amazing. Best price I've found for genuine NS530 grade. Shipping was very fast.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Precise and Reliable\"\u003c\/strong\u003e - \u003cem\u003eAhmed K., UAE\u003c\/em\u003e\u003cbr\u003e\"Very happy with these inserts. The 1.0mm width is spot on and the Cermet grade is very tough.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eTechnical Q\u0026amp;A\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use NS530 for Stainless Steel?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: NS530 is a Cermet optimized for Steel and Cast Iron. For 300-series Stainless, a PVD carbide grade like AH725 is usually more effective due to higher toughness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: What tool holder fits these inserts?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: They fit Tungaloy \u003cstrong\u003eGI-series\u003c\/strong\u003e or \u003cstrong\u003eCTIR\/L\u003c\/strong\u003e internal grooving bars designed for the size 7 insert pocket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Does the width change with the corner radius?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: No, the CW (Cutting Width) is maintained at the nominal value (1.0, 1.5, or 2.0), while the corner radius (RE) is subtracted from the corners to prevent sharp stress points.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Machining Tip: Why Use Cermet?\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eFor \u003cstrong\u003einternal grooving\u003c\/strong\u003e, **NS530 Cermet** is your best friend for finishing. Its low affinity for steel means chips won't weld to the tip (Built-up Edge), ensuring your slots remain perfectly sized with a \u003cstrong\u003emirror-like finish\u003c\/strong\u003e. Always use ample coolant to keep the chip evacuation path clear!\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Scraping Protection Active\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"7GR100 NS530","offer_id":45534913724588,"sku":null,"price":124.63,"currency_code":"USD","in_stock":true},{"title":"7GR150 NS530","offer_id":45534913757356,"sku":null,"price":124.63,"currency_code":"USD","in_stock":true},{"title":"7GR200 NS530","offer_id":45534913790124,"sku":null,"price":124.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_7GR_series_NS530_Cermet_internal_grooving_inserts_in_1.0mm_1.5mm_and_2.0mm_widths..jpg?v=1773398702"},{"product_id":"tungaloy-8gr-series-ns530-internal-grooving-carbide-inserts","title":"Tungaloy 8GR150 8GR200 8GR250 NS530 Internal Grooving Carbide Inserts (1.5mm-2.5mm)","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTUNGALOY 8GR SERIES NS530\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eProfessional Internal Grooving | 1.5mm, 2.0mm, 2.5mm | NS530 Cermet Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy 8GR Series (150\/200\/250) NS530\u003c\/strong\u003e represents a high-tier solution for \u003cstrong\u003einternal grooving\u003c\/strong\u003e operations. With width options of 1.5mm, 2.0mm, and 2.5mm, these \u003cstrong\u003eindexable carbide inserts\u003c\/strong\u003e are engineered specifically for high-precision slotting within internal bores. The \u003cstrong\u003eNS530 Cermet grade\u003c\/strong\u003e is the standout feature, offering exceptional chemical stability and resistance to built-up edge (BUE). This makes it the ideal choice for achieving high-speed finishing and mirror-like surfaces on steel workpieces. Designed and manufactured in Japan, the 8GR series ensures stable \u003cstrong\u003eCNC machining\u003c\/strong\u003e and long-lasting \u003cstrong\u003etool life\u003c\/strong\u003e for your most demanding production runs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eTechnical Designation Breakdown\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e8\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eInsert Size\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e150-250\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eWidth (x100)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eSize Comparison: Metric vs. Imperial\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Width (CW)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Equivalent\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e8GR150 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.059 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e8GR200 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.078 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e8GR250 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.098 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eNS530 Cermet: Precision \u0026amp; Surface Quality\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eNS530 grade\u003c\/strong\u003e is a specialized Cermet (Ceramic-Metal composite) that excels in finishing applications. Because it has low affinity for iron-based materials, it virtually eliminates built-up edge, which is a common cause of poor surface finish in \u003cstrong\u003einternal grooving\u003c\/strong\u003e. This \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e industry favorite allows for higher cutting speeds and significantly improves the brightness and accuracy of the groove flanks in \u003cstrong\u003eprecision machining\u003c\/strong\u003e of carbon and alloy steels.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eInternal Groove Geometry\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e8GR geometry\u003c\/strong\u003e is designed to reduce cutting resistance and facilitate chip flow. In internal operations, where the chip space is restricted, this geometry prevents chip re-cutting, thereby protecting the surface finish of the bore and extending the life of your \u003cstrong\u003eCNC machining\u003c\/strong\u003e tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cp\u003eOptimized for \u003cstrong\u003eP (Steel) and K (Cast Iron)\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 90 - 180 m\/min (295 - 590 SFM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.04 - 0.10 mm\/rev (0.0015 - 0.0039 ipr)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For 2.5mm widths, ensure your boring bar has high rigidity to maintain the best surface finish provided by the NS530 Cermet.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Reviews\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Amazing Finish on Steel\"\u003c\/strong\u003e - \u003cem\u003eJohann B., Germany\u003c\/em\u003e\u003cbr\u003e\"The 8GR200 NS530 is my go-to for internal finishing. The Cermet grade leaves a surface that looks polished. Much better than coated carbide for this application.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Very Stable and Precise\"\u003c\/strong\u003e - \u003cem\u003eTakeshi N., Japan\u003c\/em\u003e\u003cbr\u003e\"Tungaloy's 8GR series provides excellent dimensional stability. We use the 1.5mm for precision O-ring grooves and they are perfect every time.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great Price for Tungaloy\"\u003c\/strong\u003e - \u003cem\u003eMark D., USA\u003c\/em\u003e\u003cbr\u003e\"Authentic Japanese inserts at a fair price. The 2.5mm width holds up really well in high-volume production runs on 1045 steel.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Cleanest Groove Ever\"\u003c\/strong\u003e - \u003cem\u003ePaolo M., Italy\u003c\/em\u003e\u003cbr\u003e\"We switched to NS530 for our internal finishing and the difference is huge. No more rubbing or gummy chips.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable and Fast\"\u003c\/strong\u003e - \u003cem\u003eLee W., Singapore\u003c\/em\u003e\u003cbr\u003e\"Fast shipping and the quality is exactly what you expect from Tungaloy. The 8GR series is very reliable in our CNC lathes.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eTechnical Q\u0026amp;A\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use NS530 for machining Stainless Steel?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: NS530 is a Cermet optimized for Steel (P) and Cast Iron (K). For gummy materials like 304\/316 Stainless, a PVD carbide grade like AH725 is generally recommended for better toughness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: What tool holders are compatible with the 8GR series?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: These inserts fit Tungaloy **CTIR\/L** or **GI-series** internal grooving bars designed for the size 8 insert pocket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is this insert suitable for interrupted cuts?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Cermet is more brittle than carbide. For finishing, it is excellent, but for heavy interrupted cuts, a coated carbide grade is usually preferred to prevent chipping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Machining Tip: Cermet Advantage\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen using **NS530 Cermet** for **internal grooving**, higher cutting speeds actually help improve surface finish. Cermet thrives in high-heat finishing environments where carbide would typically experience chemical wear. Always ensure stable clamping and a constant feed for the best \u003cstrong\u003eprecision machining\u003c\/strong\u003e results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Scraping Protection Active\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"8GR150 NS530","offer_id":45534917296300,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"8GR200 NS530","offer_id":45534917329068,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"8GR250 NS530","offer_id":45534917361836,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_8GR_series_NS530_Cermet_internal_grooving_inserts_in_1.5mm_2.0mm_and_2.5mm_widths_for_CNC_precision_machining..jpg?v=1773399372"},{"product_id":"tungaloy-9gr-series-ns530-internal-grooving-carbide-inserts","title":"Tungaloy 9GR150 9GR250 9GR300 9GR350 NS530 Internal Grooving Carbide Inserts","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTUNGALOY 9GR SERIES NS530\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision Internal Grooving | 1.5mm - 3.5mm | NS530 Cermet Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy 9GR Series (150\/250\/300\/350) NS530\u003c\/strong\u003e is a professional-grade solution for \u003cstrong\u003einternal grooving\u003c\/strong\u003e operations requiring extreme precision and superior surface quality. Spanning widths from 1.5mm to 3.5mm, these \u003cstrong\u003eindexable carbide inserts\u003c\/strong\u003e are designed to fit size 9 internal boring bars. The core advantage of this series lies in the \u003cstrong\u003eNS530 Cermet grade\u003c\/strong\u003e, a titanium-based composite that offers exceptional chemical stability. This results in a \"mirror finish\" and prolonged \u003cstrong\u003etool life\u003c\/strong\u003e when machining carbon steel, alloy steel, and cast iron. Made in Japan, these inserts are the preferred choice for \u003cstrong\u003eCNC machining\u003c\/strong\u003e professionals who refuse to compromise on accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eTechnical Designation Breakdown\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e9\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePocket Size\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e150-350\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eWidth (x100)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eSize Specifications: Metric vs. Imperial\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Width (CW)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Approx.\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR150 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.059 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR250 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.098 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR300 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.118 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR350 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.138 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMaterial: NS530 Cermet Technology\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eNS530 grade\u003c\/strong\u003e is Tungaloy's premier Cermet for finishing. Unlike standard tungsten carbide, Cermet has a much lower affinity for steel workpieces, which prevents Built-Up Edge (BUE). This \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e industry favorite allows for higher cutting speeds and ensures that the dimensions of your internal grooves remain constant throughout the entire batch of \u003cstrong\u003eprecision machining\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eInternal Geometry Design\u003c\/h3\u003e\n\u003cp\u003eThe 9GR series features a positive rake angle and a sharp cutting edge optimized for internal boring. This design minimizes cutting forces, which is vital for preventing vibration and chatter in \u003cstrong\u003einternal grooving\u003c\/strong\u003e where the tool overhang is often long.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cp\u003eOptimized for \u003cstrong\u003eP (Steel) and K (Cast Iron)\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 100 - 200 m\/min (330 - 650 SFM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.05 - 0.12 mm\/rev (0.002 - 0.0047 ipr)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Note: For larger widths (3.0mm+), ensure high pressure coolant is directed into the groove to assist with chip evacuation.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Reviews\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Mirror Finish on 4140 Steel\"\u003c\/strong\u003e - \u003cem\u003eHans R., Germany\u003c\/em\u003e\u003cbr\u003e\"The 9GR300 NS530 is simply incredible. The surface finish inside the bore is so smooth it looks polished. Cermet is the way to go for finishing.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Consistent and Accurate\"\u003c\/strong\u003e - \u003cem\u003eSato K., Japan\u003c\/em\u003e\u003cbr\u003e\"We use the 1.5mm for precision O-ring grooves. Tungaloy quality is always reliable. The NS530 grade lasts much longer than standard carbide for our finishing runs.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great Performance in Cast Iron\"\u003c\/strong\u003e - \u003cem\u003eMark T., USA\u003c\/em\u003e\u003cbr\u003e\"Very impressed with the 9GR350. It handles cast iron beautifully with zero chipping. A very stable grooving tool.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Top Choice for Finishing\"\u003c\/strong\u003e - \u003cem\u003eAlessandro B., Italy\u003c\/em\u003e\u003cbr\u003e\"The 2.5mm width is spot on. If you need a clean, precise internal groove, don't hesitate to use the NS530 grade.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable and Fast Shipping\"\u003c\/strong\u003e - \u003cem\u003eLiam J., Australia\u003c\/em\u003e\u003cbr\u003e\"Original Japanese inserts. They fit my SNR bars perfectly and the tool life is fantastic. Excellent value.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eTechnical Q\u0026amp;A\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use NS530 for 304 Stainless Steel?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: NS530 is optimized for P (Steel) and K (Cast Iron). For Stainless Steel, we recommend a PVD carbide grade like AH725 to handle the material's work-hardening properties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holders are compatible with 9GR inserts?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: These inserts are designed for Tungaloy **CTIR\/L** or **GI-series** boring bars that utilize a size 9 pocket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is this insert suitable for roughing?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Cermet is designed for high-speed finishing. For heavy roughing or large stock removal, a coated carbide insert is preferred for higher impact resistance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Machining Tip: Why Cermet?\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen performing **internal grooving** in steel, heat is your enemy. **NS530 Cermet** handles high temperatures better than carbide and maintains a sharper edge. This sharpness is the key to preventing \"burrs\" and achieving the high-precision fit required for modern \u003cstrong\u003eCNC machining\u003c\/strong\u003e projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Scraping Protection Active\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"9GR150 NS530","offer_id":45534920409260,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"9GR250 NS530","offer_id":45534920442028,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"9GR300 NS530","offer_id":45534920474796,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"9GR350 NS530","offer_id":45534920507564,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_9GR_series_NS530_Cermet_internal_grooving_inserts_available_in_1.5mm_2.5mm_3.0mm_and_3.5mm_widths_for_CNC_lathes..jpg?v=1773399701"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/collections\/9GR200_NS530.jpg?v=1775212972","url":"https:\/\/cnchome-beyond.com\/collections\/tungaloy-grooving-inserts-tungcut-tetraforce-collection.oembed","provider":"CNCHome-Beyond","version":"1.0","type":"link"}