{"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","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-7gr-series-ns530-internal-grooving-carbide-inserts","provider":"CNCHome-Beyond","version":"1.0","type":"link"}