{"title":"Tungaloy EP Series 75° Rhombic Inserts | EPGT EPMT Precision Turning","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 EP 75° Rhombic Turning Inserts\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eOptimized Profiling Geometry | Ultra-Sharp Cutting Edges | Precision Finishing\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 insert is best for intricate 75-degree profiling with high surface quality?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy EP Series\u003c\/strong\u003e 75° rhombic inserts (including \u003cstrong\u003eEPGT and EPMT\u003c\/strong\u003e) are specialty tools designed for complex profiling where standard 80° (C) or 55° (D) geometries might interfere with the workpiece. The 75-degree included angle provides a unique balance of edge strength and clearance. Utilizing the \u003cstrong\u003eAH725 PVD\u003c\/strong\u003e grade for versatile alloy machining or the \u003cstrong\u003eNS530 Cermet\u003c\/strong\u003e grade for mirror-like finishes, these inserts are essential for precision CNC operations. The ground-class E-tolerance (for EPGT) ensures sub-micron repeatability, while the specialized \u003cstrong\u003e-JS and -W\u003c\/strong\u003e chipbreakers provide exceptional chip breaking even at low depths of cut (Ap) and light feeds.\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 EP Series 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;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e75° Rhombic\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;\"\u003eP\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e11° Relief\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 \/ M\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eTolerance\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;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eHole\/Fix\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;\"\u003e04\/03\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eI.C. 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;\"\u003e01\/02\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eThickness\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;\"\u003e02\/04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRadius\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;\"\u003e75° Strategic Geometry\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eUnique rhombic shape designed to reach tight corners and intricate profiles that standard turning inserts cannot access.\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;\"\u003eJS Chipbreaker Technology\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eOptimized for small-diameter machining and finishing, ensuring chips are curled and broken even in ductile materials.\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;\"\u003eHigh Precision Tolerance\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 0;\"\u003eAvailable in G-class ground tolerance for high repeatability, minimizing tool offset adjustments after insert changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eCross-Reference: 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;\"\u003eISO Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eANSI Model\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eI.C. Size\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;\"\u003eEPGT 040102L-JS\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT 1.2(1)0.5L\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eFine Finishing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPMT 040104-PS\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPMT 1.2(1)1\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eGeneral Profiling\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;\"\u003eSuggested 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\u003eFinishing (NS530 Cermet)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.2);\"\u003eVc: 150-300 m\/min | f: 0.03-0.12 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px;\"\u003e\u003cstrong\u003eMedium (AH725 Carbide)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px;\"\u003eVc: 80-180 m\/min | f: 0.05-0.15 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;\"\u003eMatching Profiling Tool Holders\u003c\/h3\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 15px; border-radius: 8px; display: inline-block;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold;\"\u003eCompatible with SEP-type External Holders and Internal Boring Bars\u003c\/p\u003e\n\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 Profiling Holders\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\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;\"\u003eTarget Applications\u003c\/h3\u003e\n\u003cul style=\"padding-left: 20px;\"\u003e\n\u003cli\u003ePrecision profiling in medical device components.\u003c\/li\u003e\n\u003cli\u003eSwiss-type CNC machining for small diameter shafts.\u003c\/li\u003e\n\u003cli\u003eComplex valve body and aerospace fastener turning.\u003c\/li\u003e\n\u003cli\u003eHigh-finish automotive interior trim molds.\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\u003ePerfectly suited for Citizen, Star, and Tsugami Swiss-type lathes, as well as high-precision CNC lathes like DMG Mori and Mazak.\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 EP Grade Selection\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 Workpiece\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 Carbide\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eStainless, Steel, Superalloys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd; font-weight: bold;\"\u003eNS530\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eUncoated Cermet\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFinishing Carbon\/Alloy Steel\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\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 CNC Advantage\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\u003eVerified Tungaloy Japan\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\u003eBulk Export\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eB2B Global Supply\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\u003eApplication Engineering\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 Reports\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\"Essential for Profiling\"\u003c\/strong\u003e - \u003cem\u003eGiovanni R., Italy\u003c\/em\u003e\u003cbr\u003e\"The 75-degree angle is exactly what we needed for our specific valve components. EPGT ground tolerance is perfect.\"\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\"Swiss-Lathe Master\"\u003c\/strong\u003e - \u003cem\u003eKenji T., Japan\u003c\/em\u003e\u003cbr\u003e\"Excellent results in small diameter medical screws. AH725 grade handles the toughness of stainless beautifully.\"\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\"Mirror Finish\"\u003c\/strong\u003e - \u003cem\u003eHans W., Germany\u003c\/em\u003e\u003cbr\u003e\"Using the NS530 cermet for finishing. Surface Ra is consistently under 0.8. Very reliable product.\"\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: When should I choose EPGT over EPMT?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Choose EPGT (ground) for high-precision finishing and Swiss-type lathes where tool offset repeatability is critical. Use EPMT (molded) for general profiling to save costs.\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: Does this replace the DCMT 55-degree insert?\u003c\/p\u003e\n\u003cp style=\"margin: 5px 0 0;\"\u003eA: Not directly. EP 75-degree inserts are used when a 55-degree is too weak or an 80-degree is too wide for the specific geometry of the part.\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;\"\u003eTech Tip: Vibration Control\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eDue to the 11° relief angle of **EP inserts**, keep tool overhang minimal. For internal profiling, use carbide boring bars to maintain the rigidity needed for a chatter-free finish. **BEYOND CNC** - Your Partner 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 Document by Beyond Li - CNC Tooling Technical Director\u003c\/p\u003e","products":[{"product_id":"tungaloy-epgt040102l-w08-ns9530-cermet-boring-insert","title":"Tungaloy EPGT040102L-W08 NS9530 Cermet Turning Insert for Precision Boring","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 EPGT040102L-W08 NS9530 Cermet Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eUltra-Precision Boring | Premium NS9530 Cermet | Crafted 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 boring insert for high-precision small hole finishing?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy EPGT040102L-W08 NS9530\u003c\/strong\u003e is a high-accuracy \u003cstrong\u003ecermet turning insert\u003c\/strong\u003e specifically designed for micro-boring and small-diameter internal finishing. The \u003cstrong\u003eNS9530 cermet grade\u003c\/strong\u003e is engineered with a fine-grained structure that provides a sharp, stable cutting edge and exceptional resistance to built-up edge (BUE). The \u003cstrong\u003e-W08 chipbreaker\u003c\/strong\u003e is optimized for ultra-light depths of cut, ensuring superior chip evacuation in confined spaces. This Japan-made \u003cstrong\u003eindexable boring tool\u003c\/strong\u003e is the professional \u003cstrong\u003eCNC machining\u003c\/strong\u003e choice for medical, aerospace, and watchmaking industries where dimensional consistency and surface Ra are paramount. Integrating this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert into your production provides longer \u003cstrong\u003etool life\u003c\/strong\u003e and unmatched surface brilliance.\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 EPGT040102L-W08 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: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e75° Rhombic\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eP\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e11° Relief\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eG-Tolerance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eScrew Lock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e4.7mm Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e01\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.2mm Thick\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e02L\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.2mm Left\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e-W08\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFinish Breaker\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 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;\"\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;\"\u003eISO Model Name\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT040102L-W08\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT1.510.5L-W08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/16 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eThickness (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.047 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;\"\u003e0.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.008 inch\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 (NS9530)\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 100 - 250 m\/min (High-Speed Fine Finishing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.12 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut (ap):\u003c\/strong\u003e 0.05 - 0.8 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For micro-boring, ensure minimal tool overhang to maintain rigidity. Cermet requires constant speed to achieve the best surface Ra.*\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 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 Watch Parts\"\u003c\/strong\u003e - \u003cem\u003eB. Muller, Switzerland\u003c\/em\u003e\u003cbr\u003e\"Using the EPGT04 for tiny brass and steel components. The surface finish is absolute mirror. NS9530 is remarkably sharp.\"\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 Boring Control\"\u003c\/strong\u003e - \u003cem\u003eR. Tanaka, Japan\u003c\/em\u003e\u003cbr\u003e\"Minimal vibration in small holes. The 0.2mm radius is perfect for sharp corners and tight tolerances. Tungaloy quality is unmatched.\"\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\u003eJohn D., USA\u003c\/em\u003e\u003cbr\u003e\"Even at 0.05mm depth of cut, the -W08 breaker breaks chips cleanly. No birdnesting inside the holes.\"\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 B., Italy\u003c\/em\u003e\u003cbr\u003e\"We use this for precision valve seats. The shine on the steel is ground-quality. Very reliable cermet 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\"Long Tool Life\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Holds size perfectly over long runs. Fast shipping and the inserts arrived in original Tungaloy packaging.\"\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 Cermet better than Carbide for micro-boring?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: Yes. Cermet has lower chemical affinity with the workpiece, preventing built-up edge and maintaining a sharper edge longer for finishing cycles.\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 is the difference between Left (L) and Right (R) in this model?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is an \"L\" (Left-hand) insert. It must be paired with a corresponding Left-hand boring bar. Match your tool holder orientation carefully.\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 I use this for roughing?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: No. Cermet is brittle. The 0.2mm radius and EPGT geometry are strictly for final aesthetic finishing and dimensional sizing.\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: Cermet Finishing\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eNS9530 Cermet\u003c\/strong\u003e provides the aesthetic edge. While \u003cstrong\u003eCVD Coated Carbide\u003c\/strong\u003e is built for heavy strength, Cermet is the master of high-speed surface integrity. Protect your \u003cstrong\u003eindexable turning tool\u003c\/strong\u003e by reserving this grade for final passes.\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":43155981074604,"sku":"EPGT040102L-W08 NS9530","price":84.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_EPGT040102L-W08_NS9530_Cermet_Boring_Insert_for_Precision_Micro_Machining.jpg?v=1773788262"},{"product_id":"tungaloy-epgt040104l-w08-ns9530-cermet-finishing-boring-insert","title":"Tungaloy EPGT040104L-W08 NS9530 Cermet Turning Insert for High Precision Boring","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 EPGT040104L-W08 NS9530 Cermet Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Speed Precision Boring | Premium NS9530 Cermet 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 best cermet insert for small diameter mirror-finish boring?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy EPGT040104L-W08 NS9530\u003c\/strong\u003e is a premier \u003cstrong\u003ecermet turning insert\u003c\/strong\u003e specifically engineered for ultra-precision micro-boring and small-part internal finishing. The \u003cstrong\u003eNS9530 cermet grade\u003c\/strong\u003e offers an exceptional fine-grained structure that maintains a sharp cutting edge and provides unmatched resistance to built-up edge (BUE). The \u003cstrong\u003e-W08 chipbreaker\u003c\/strong\u003e is specialized for finishing, ensuring smooth chip evacuation in tight internal spaces. As a Japan-made \u003cstrong\u003eindexable boring tool\u003c\/strong\u003e, it is the professional \u003cstrong\u003eCNC machining\u003c\/strong\u003e choice for aerospace, medical, and precision instrument industries. Integrating this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert into your production cycle ensures superior \u003cstrong\u003etool life\u003c\/strong\u003e and a brilliant aesthetic finish on steel and stainless steel components.\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 EPGT040104L-W08 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: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e75° Rhombic\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eP\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e11° Relief\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eG-Tolerance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eScrew Lock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e4.7mm Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e01\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.2mm Thick\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e04L\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.4mm Left\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e-W08\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFinish Breaker\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 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;\"\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 Equiv.\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;\"\u003eISO Model Name\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT040104L-W08\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT1.511L-W08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/16 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eThickness (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.047 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;\"\u003e0.4 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1\/64 inch\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 (NS9530)\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 100 - 250 m\/min (High-Speed Finishing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.15 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut (ap):\u003c\/strong\u003e 0.05 - 1.0 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: For micro-boring, ensure minimal tool overhang to maximize the stability and surface finish quality of the Japan cermet.*\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;\"\u003eFeedback from Global Machinists\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\"Mirror Surface internal Finish\"\u003c\/strong\u003e - \u003cem\u003eAlexander R., Germany\u003c\/em\u003e\u003cbr\u003e\"The Ra value we achieved on alloy steel parts is ground-quality. The 0.4mm radius is very strong for a small boring insert. Highly satisfied.\"\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 Small Parts\"\u003c\/strong\u003e - \u003cem\u003eKenji T., Japan\u003c\/em\u003e\u003cbr\u003e\"Consistent boring in tight diameters. No built-up edge even after hours of high-speed running. Japan-made excellence.\"\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\"Stable and Sharp\"\u003c\/strong\u003e - \u003cem\u003eMatteo V., Italy\u003c\/em\u003e\u003cbr\u003e\"Holds dimensional tolerances perfectly over long production cycles. The -W08 breaker manages chips well in small bores.\"\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 CNC Swiss\"\u003c\/strong\u003e - \u003cem\u003eMichael S., USA\u003c\/em\u003e\u003cbr\u003e\"Best finishing tool for our Swiss lathes. The surface aesthetic is unmatched. Quick delivery and original Tungaloy stock.\"\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\"High Value Cermet\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Switching to NS9530 reduced our polishing time by 50%. The tool life is very predictable. A top-tier finishing choice.\"\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 this for roughing?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: No. Cermet is more brittle than carbide. This EPGT geometry is strictly for final passes (0.05 - 1.0mm) to achieve precision dimensions and surface Ra.\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 Left (L) or Right (R) better for my lathe?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: This is an \"L\" (Left-Hand) insert. It must be paired with a Left-Hand boring bar. Match your tool holder orientation carefully to your spindle rotation.\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 work on stainless steel?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Yes. NS9530 cermet is excellent for finishing stainless steel because it prevents the material from sticking to the cutting edge (no built-up edge).\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: NS9530 Cermet vs. Coated Carbide\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eNS9530 Cermet\u003c\/strong\u003e provides the ultimate aesthetic edge. While \u003cstrong\u003eCVD Coated Carbide\u003c\/strong\u003e is built for heavy roughing, Cermet is the master of high-speed surface integrity and dimensional accuracy in finishing cycles.\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":43155983859884,"sku":"EPGT040104L-W08 NS9530","price":84.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_EPGT040104L-W08_NS9530_Left-Hand_Cermet_Boring_Insert_for_Precision_CNC_Finishing.jpg?v=1773788394"},{"product_id":"tungaloy-epgt040102l-j08-j740-coated-carbide-boring-insert","title":"Tungaloy EPGT040102L-J08 J740 Coated Carbide Turning Insert for Precision Boring","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 EPGT040102L-J08 J740 Boring Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Performance PVD Coated J740 | Stainless Steel Specialist | 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 stable insert for boring small holes in stainless steel?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy EPGT040102L-J08 J740\u003c\/strong\u003e is a high-precision \u003cstrong\u003eindexable boring tool\u003c\/strong\u003e specifically engineered for difficult-to-machine materials. Featuring the \u003cstrong\u003eJ740 PVD coated carbide grade\u003c\/strong\u003e, this insert offers extreme toughness and wear resistance, particularly when facing the work-hardening tendencies of stainless steels and superalloys. The \u003cstrong\u003e-J08 chipbreaker\u003c\/strong\u003e is designed for light depths of cut, providing sharp cutting action and superior chip control in internal applications. As a premium \u003cstrong\u003eCNC machining\u003c\/strong\u003e component from Japan, this \u003cstrong\u003eLeft-Hand (L)\u003c\/strong\u003e insert ensures incredible dimensional accuracy. Integrating this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized solution into your production provides longer \u003cstrong\u003etool life\u003c\/strong\u003e and reduces the risk of edge chipping in demanding 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 EPGT040102L-J08 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: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e75° Rhombic\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eP\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e11° Relief\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eG-Tolerance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eScrew Lock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e4.7mm Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e01\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.2mm Thick\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e02L\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.2mm Left\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e-J08\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFinishing\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 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;\"\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;\"\u003eISO Model Name\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT040102L-J08\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT1.510.5L-J08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/16 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eThickness (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.047 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;\"\u003e0.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.008 inch\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)\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 - 120 m\/min (Highly Dependent on Material)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.10 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut (ap):\u003c\/strong\u003e 0.05 - 0.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: J740 is excellent for gummy materials like low-carbon steel and stainless. Always use coolant for internal boring to assist chip removal.*\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;\"\u003eFeedback from Global Machinists\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\"Stainless Steel Savior\"\u003c\/strong\u003e - \u003cem\u003eG. Weber, Germany\u003c\/em\u003e\u003cbr\u003e\"J740 grade is perfect for our 316L parts. We were getting edge chipping with other brands, but these Tungaloy inserts are much tougher.\"\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 Medical Parts\"\u003c\/strong\u003e - \u003cem\u003eD. Miller, USA\u003c\/em\u003e\u003cbr\u003e\"The 0.2mm radius allows us to hit tight corners on surgical components. Very stable tool life and great precision. Japan-made quality at its best.\"\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\"Smooth Cutting\"\u003c\/strong\u003e - \u003cem\u003eHiroshi K., Japan\u003c\/em\u003e\u003cbr\u003e\"Sharp edge and great chip control with the J08 breaker. Holds size over long production runs. Very satisfied.\"\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 Accuracy Boring\"\u003c\/strong\u003e - \u003cem\u003eLuca M., Italy\u003c\/em\u003e\u003cbr\u003e\"G-Tolerance is essential for our high-precision valve seats. These inserts are consistent part after part.\"\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 Value\"\u003c\/strong\u003e - \u003cem\u003eS. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Reliable performance in heat-resistant alloys. Original packaging and fast shipping. 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 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: Why choose J740 over GH110?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: J740 is specifically designed for stainless steel and superalloys. It offers higher resistance to the high temperatures and work-hardening characteristic of those materials compared to general-purpose grades.\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 is the benefit of the EPGT geometry?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: The 75-degree rhombic shape combined with a positive relief angle allows for minimal cutting forces, which is crucial for small-diameter boring to prevent deflection and chatter.\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 compatible with standard boring bars?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Yes, it fits standard ISO holders for EPGT04 inserts. However, ensure you have a Left-Hand (L) holder for this Left-Hand 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;\"\u003eExpert Insight: PVD Coated J740 Grade\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eJ740 Carbide\u003c\/strong\u003e is the ultimate specialist for tough materials. While \u003cstrong\u003eNS9530 Cermet\u003c\/strong\u003e offers higher gloss in steels, J740 provides the physical integrity needed for high-pressure finishing in aerospace and medical stainless. Protect your \u003cstrong\u003eindexable turning tool\u003c\/strong\u003e by using proper filtration in your 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":43155996147884,"sku":"EPGT040102L-J08 J740","price":144.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_EPGT040102L-J08_J740_Left-Hand_PVD_Coated_Carbide_Insert_for_Micro_Boring.jpg?v=1773788996"},{"product_id":"tungaloy-epgt040102l-w08-gh110-coated-carbide-boring-insert","title":"Tungaloy EPGT040102L-W08 GH110 Coated Carbide Turning Insert for Precision Boring","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 EPGT040102L-W08 GH110 Boring Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision PVD Coated Carbide | Industrial GH110 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 small diameter precision boring?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy EPGT040102L-W08 GH110\u003c\/strong\u003e is a specialized \u003cstrong\u003eindexable boring tool\u003c\/strong\u003e designed for high-precision internal finishing. Unlike standard cermet, the \u003cstrong\u003eGH110 PVD coated carbide grade\u003c\/strong\u003e offers exceptional toughness and thermal stability, making it ideal for consistent performance in alloy steels, stainless steel, and cast iron. The \u003cstrong\u003e-W08 chipbreaker\u003c\/strong\u003e is a dedicated finishing geometry, providing sharp cutting action and efficient chip evacuation even at extremely light depths of cut. This \u003cstrong\u003eLeft-Hand (L)\u003c\/strong\u003e insert is a staple in \u003cstrong\u003eCNC machining\u003c\/strong\u003e environments where dimensional accuracy and \u003cstrong\u003etool life\u003c\/strong\u003e are the highest priorities. Integrating this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert into your workflow ensures high-speed efficiency 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 EPGT040102L-W08 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: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e75° Rhombic\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eP\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e11° Relief\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eG-Tolerance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eScrew Lock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e4.7mm Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e01\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.2mm Thick\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e02L\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.2mm Left\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e-W08\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFinishing\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 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;\"\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;\"\u003eISO Model Name\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT040102L-W08\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT1.510.5L-W08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/16 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eThickness (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.047 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;\"\u003e0.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.008 inch\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 (GH110)\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 80 - 180 m\/min (Standard Precision Range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.12 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut (ap):\u003c\/strong\u003e 0.05 - 0.7 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: GH110 is a high-toughness grade. If you encounter slight chatter, reduce your cutting speed and ensure your boring bar overhang is as short as possible.*\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;\"\u003eFeedback from Global Machinists\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\"Tougher than Cermet\"\u003c\/strong\u003e - \u003cem\u003eMark T., USA\u003c\/em\u003e\u003cbr\u003e\"Switched to GH110 for our small boring ops on 304 stainless. The edge holds up much better against the work hardening than cermet did. Great product.\"\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 Precision Valves\"\u003c\/strong\u003e - \u003cem\u003eK. Schmidt, Germany\u003c\/em\u003e\u003cbr\u003e\"Very sharp and holds tolerance over hundreds of parts. The Left-hand orientation is exactly what we needed for our specific Swiss-turn 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\"Consistent Tool Life\"\u003c\/strong\u003e - \u003cem\u003eHiroshi S., Japan\u003c\/em\u003e\u003cbr\u003e\"Tungaloy GH110 is my go-to for alloy steel internal work. The -W08 chipbreaker keeps the chips short and prevents scratching. Original Japan stock.\"\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 for Cast Iron\"\u003c\/strong\u003e - \u003cem\u003eM. Conti, Italy\u003c\/em\u003e\u003cbr\u003e\"Used this on grey cast iron and the wear was extremely uniform. Excellent Ra values on the finish pass.\"\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 Delivery \u0026amp; High Quality\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Hard to find original EPGT in GH110 locally. These are authentic Tungaloy and perform significantly better than generic alternatives.\"\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 GH110 handle interrupted cuts?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: GH110 is a tough, PVD coated carbide grade. It handles light interruptions much better than cermet, though high-speed continuous boring is still where it excels most.\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 this insert suitable for non-ferrous materials?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: GH110 is optimized for steels and cast iron. For aluminum or copper, an uncoated, high-polish grade (like KS05F) would be more appropriate to prevent adhesion.\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 is Left-Hand (L) necessary?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Orientation is critical for internal boring. Ensure your boring bar and spindle rotation direction match the Left-hand geometry of this 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;\"\u003eExpert Insight: PVD Coated Carbide GH110\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eGH110 Carbide\u003c\/strong\u003e provides the balance between toughness and precision. While \u003cstrong\u003eNS9530 Cermet\u003c\/strong\u003e offers higher gloss, GH110 is the workhorse for difficult-to-cut materials and applications requiring absolute edge stability. Protect your \u003cstrong\u003eindexable turning tool\u003c\/strong\u003e by following recommended feed rates.\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":43156065550508,"sku":"EPGT040102L-W08 GH110","price":109.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_EPGT040102L-W08_GH110_Left-Hand_Coated_Carbide_Boring_Insert_for_Precision_CNC.jpg?v=1773788553"},{"product_id":"tungaloy-epgt040104l-w08-gh110-carbide-boring-insert","title":"Tungaloy EPGT040104L-W08 GH110 PVD Coated Carbide Turning 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 EPGT040102L-W08 GH110 Boring Insert\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision PVD Coated Carbide | Industrial GH110 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 small diameter precision boring?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy EPGT040102L-W08 GH110\u003c\/strong\u003e is a specialized \u003cstrong\u003eindexable boring tool\u003c\/strong\u003e designed for high-precision internal finishing. Unlike standard cermet, the \u003cstrong\u003eGH110 PVD coated carbide grade\u003c\/strong\u003e offers exceptional toughness and thermal stability, making it ideal for consistent performance in alloy steels, stainless steel, and cast iron. The \u003cstrong\u003e-W08 chipbreaker\u003c\/strong\u003e is a dedicated finishing geometry, providing sharp cutting action and efficient chip evacuation even at extremely light depths of cut. This \u003cstrong\u003eLeft-Hand (L)\u003c\/strong\u003e insert is a staple in \u003cstrong\u003eCNC machining\u003c\/strong\u003e environments where dimensional accuracy and \u003cstrong\u003etool life\u003c\/strong\u003e are the highest priorities. Integrating this \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e optimized insert into your workflow ensures high-speed efficiency 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 EPGT040102L-W08 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: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eE\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e75° Rhombic\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eP\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e11° Relief\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eG-Tolerance\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003eT\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eScrew Lock\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e04\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e4.7mm Edge\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e01\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e1.2mm Thick\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e02L\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003e0.2mm Left\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 55px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 16px;\"\u003e-W08\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eFinishing\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 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;\"\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;\"\u003eISO Model Name\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT040102L-W08\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eEPGT1.510.5L-W08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3\/16 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003eThickness (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.047 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;\"\u003e0.2 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.008 inch\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 (GH110)\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 80 - 180 m\/min (Standard Precision Range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.03 - 0.12 mm\/rev\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut (ap):\u003c\/strong\u003e 0.05 - 0.7 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Pro Tip: GH110 is a high-toughness grade. If you encounter slight chatter, reduce your cutting speed and ensure your boring bar overhang is as short as possible.*\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;\"\u003eFeedback from Global Machinists\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\"Tougher than Cermet\"\u003c\/strong\u003e - \u003cem\u003eMark T., USA\u003c\/em\u003e\u003cbr\u003e\"Switched to GH110 for our small boring ops on 304 stainless. The edge holds up much better against the work hardening than cermet did. Great product.\"\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 Precision Valves\"\u003c\/strong\u003e - \u003cem\u003eK. Schmidt, Germany\u003c\/em\u003e\u003cbr\u003e\"Very sharp and holds tolerance over hundreds of parts. The Left-hand orientation is exactly what we needed for our specific Swiss-turn 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\"Consistent Tool Life\"\u003c\/strong\u003e - \u003cem\u003eHiroshi S., Japan\u003c\/em\u003e\u003cbr\u003e\"Tungaloy GH110 is my go-to for alloy steel internal work. The -W08 chipbreaker keeps the chips short and prevents scratching. Original Japan stock.\"\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 for Cast Iron\"\u003c\/strong\u003e - \u003cem\u003eM. Conti, Italy\u003c\/em\u003e\u003cbr\u003e\"Used this on grey cast iron and the wear was extremely uniform. Excellent Ra values on the finish pass.\"\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 Delivery \u0026amp; High Quality\"\u003c\/strong\u003e - \u003cem\u003eA. Clarke, UK\u003c\/em\u003e\u003cbr\u003e\"Hard to find original EPGT in GH110 locally. These are authentic Tungaloy and perform significantly better than generic alternatives.\"\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 GH110 handle interrupted cuts?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: GH110 is a tough, PVD coated carbide grade. It handles light interruptions much better than cermet, though high-speed continuous boring is still where it excels most.\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 this insert suitable for non-ferrous materials?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: GH110 is optimized for steels and cast iron. For aluminum or copper, an uncoated, high-polish grade (like KS05F) would be more appropriate to prevent adhesion.\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 is Left-Hand (L) necessary?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Orientation is critical for internal boring. Ensure your boring bar and spindle rotation direction match the Left-hand geometry of this 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;\"\u003eExpert Insight: PVD Coated Carbide GH110\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eIn \u003cstrong\u003eprecision machining\u003c\/strong\u003e, \u003cstrong\u003eGH110 Carbide\u003c\/strong\u003e provides the balance between toughness and precision. While \u003cstrong\u003eNS9530 Cermet\u003c\/strong\u003e offers higher gloss, GH110 is the workhorse for difficult-to-cut materials and applications requiring absolute edge stability. Protect your \u003cstrong\u003eindexable turning tool\u003c\/strong\u003e by following recommended feed rates.\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":43156071579820,"sku":"EPGT040104L-W08 GH110","price":109.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_EPGT040104L-W08_GH110_Left-Hand_PVD_Coated_Carbide_Insert_for_Internal_Boring.jpg?v=1773788848"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/collections\/Tungaloy_EP_Style_75_Degree_Rhombic_Carbide_Turning_Inserts.jpg?v=1775213196","url":"https:\/\/cnchome-beyond.com\/collections\/tungaloy-ep-75-rhombic-inserts-epgt-epmt.oembed","provider":"CNCHome-Beyond","version":"1.0","type":"link"}