{"product_id":"tungaloy-9gr-series-ns530-internal-grooving-carbide-inserts","title":"Tungaloy 9GR150 9GR250 9GR300 9GR350 NS530 Internal Grooving Carbide Inserts","description":"\u003cdiv style=\"font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: auto; border: 1px solid #e0e0e0; background-color: #fff; border-radius: 8px; overflow: hidden; user-select: none;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 45px 20px; text-align: center;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 28px; font-weight: bold; letter-spacing: 1px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003eTUNGALOY 9GR SERIES NS530\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"margin: 10px 0 0; font-size: 18px; opacity: 0.9;\"\u003eHigh-Precision Internal Grooving | 1.5mm - 3.5mm | NS530 Cermet Grade\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 3px solid #47479F; display: inline-block; padding-bottom: 5px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTungaloy 9GR Series (150\/250\/300\/350) NS530\u003c\/strong\u003e is a professional-grade solution for \u003cstrong\u003einternal grooving\u003c\/strong\u003e operations requiring extreme precision and superior surface quality. Spanning widths from 1.5mm to 3.5mm, these \u003cstrong\u003eindexable carbide inserts\u003c\/strong\u003e are designed to fit size 9 internal boring bars. The core advantage of this series lies in the \u003cstrong\u003eNS530 Cermet grade\u003c\/strong\u003e, a titanium-based composite that offers exceptional chemical stability. This results in a \"mirror finish\" and prolonged \u003cstrong\u003etool life\u003c\/strong\u003e when machining carbon steel, alloy steel, and cast iron. Made in Japan, these inserts are the preferred choice for \u003cstrong\u003eCNC machining\u003c\/strong\u003e professionals who refuse to compromise on accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 25px;\"\u003eTechnical Designation Breakdown\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e9\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003ePocket Size\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eG\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eGrooving\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003eR\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eRight Hand\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 10px; text-align: center; min-width: 65px; background: white; border-radius: 4px;\"\u003e\n\u003cb style=\"color: #47479f; font-size: 18px;\"\u003e150-350\u003c\/b\u003e\u003cbr\u003e\u003csmall\u003eWidth (x100)\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f;\"\u003eSize Specifications: Metric vs. Imperial\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: white;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eMetric Width (CW)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eImperial Approx.\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\"\u003eCorner Radius\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR150 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e1.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.059 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR250 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e2.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.098 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR300 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.00 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.118 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\"\u003e9GR350 NS530\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e3.50 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.138 inch\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003e0.20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f4f4fb;\"\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eMaterial: NS530 Cermet Technology\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eNS530 grade\u003c\/strong\u003e is Tungaloy's premier Cermet for finishing. Unlike standard tungsten carbide, Cermet has a much lower affinity for steel workpieces, which prevents Built-Up Edge (BUE). This \u003cstrong\u003elong-tail keywords\u003c\/strong\u003e industry favorite allows for higher cutting speeds and ensures that the dimensions of your internal grooves remain constant throughout the entire batch of \u003cstrong\u003eprecision machining\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f;\"\u003eInternal Geometry Design\u003c\/h3\u003e\n\u003cp\u003eThe 9GR series features a positive rake angle and a sharp cutting edge optimized for internal boring. This design minimizes cutting forces, which is vital for preventing vibration and chatter in \u003cstrong\u003einternal grooving\u003c\/strong\u003e where the tool overhang is often long.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 0 30px; padding: 25px; background-color: #47479f; color: white; border-radius: 12px;\"\u003e\n\u003ch3 style=\"margin-top: 0; border-bottom: 1px solid rgba(255,255,255,0.4); padding-bottom: 10px;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cp\u003eOptimized for \u003cstrong\u003eP (Steel) and K (Cast Iron)\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Speed (Vc):\u003c\/strong\u003e 100 - 200 m\/min (330 - 650 SFM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Rate (f):\u003c\/strong\u003e 0.05 - 0.12 mm\/rev (0.002 - 0.0047 ipr)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; font-style: italic;\"\u003e*Note: For larger widths (3.0mm+), ensure high pressure coolant is directed into the groove to assist with chip evacuation.*\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px; background-color: #f9f9f9;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center; margin-bottom: 30px;\"\u003eGlobal Verified Reviews\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Mirror Finish on 4140 Steel\"\u003c\/strong\u003e - \u003cem\u003eHans R., Germany\u003c\/em\u003e\u003cbr\u003e\"The 9GR300 NS530 is simply incredible. The surface finish inside the bore is so smooth it looks polished. Cermet is the way to go for finishing.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Consistent and Accurate\"\u003c\/strong\u003e - \u003cem\u003eSato K., Japan\u003c\/em\u003e\u003cbr\u003e\"We use the 1.5mm for precision O-ring grooves. Tungaloy quality is always reliable. The NS530 grade lasts much longer than standard carbide for our finishing runs.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐ \u003cstrong\u003e\"Great Performance in Cast Iron\"\u003c\/strong\u003e - \u003cem\u003eMark T., USA\u003c\/em\u003e\u003cbr\u003e\"Very impressed with the 9GR350. It handles cast iron beautifully with zero chipping. A very stable grooving tool.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; margin-bottom: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Top Choice for Finishing\"\u003c\/strong\u003e - \u003cem\u003eAlessandro B., Italy\u003c\/em\u003e\u003cbr\u003e\"The 2.5mm width is spot on. If you need a clean, precise internal groove, don't hesitate to use the NS530 grade.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; background: white; padding: 15px; border-radius: 4px;\"\u003e\n\u003cp\u003e⭐⭐⭐⭐⭐ \u003cstrong\u003e\"Reliable and Fast Shipping\"\u003c\/strong\u003e - \u003cem\u003eLiam J., Australia\u003c\/em\u003e\u003cbr\u003e\"Original Japanese inserts. They fit my SNR bars perfectly and the tool life is fantastic. Excellent value.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; text-align: center;\"\u003eTechnical Q\u0026amp;A\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 25px;\"\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Can I use NS530 for 304 Stainless Steel?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: NS530 is optimized for P (Steel) and K (Cast Iron). For Stainless Steel, we recommend a PVD carbide grade like AH725 to handle the material's work-hardening properties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; margin-bottom: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Which tool holders are compatible with 9GR inserts?\u003c\/p\u003e\n\u003cp style=\"margin: 10px 0 0;\"\u003eA: These inserts are designed for Tungaloy **CTIR\/L** or **GI-series** boring bars that utilize a size 9 pocket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 6px solid #47479F; background: #f4f4ff; padding: 15px; border-radius: 0 8px 8px 0;\"\u003e\n\u003cp style=\"font-weight: bold; margin: 0; color: #47479f;\"\u003eQ: Is this insert suitable for roughing?\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eA: Cermet is designed for high-speed finishing. For heavy roughing or large stock removal, a coated carbide insert is preferred for higher impact resistance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: white; padding: 25px; text-align: center; border-radius: 0 0 8px 8px;\"\u003e\n\u003ch4 style=\"margin: 0; font-size: 18px;\"\u003eExpert Machining Tip: Why Cermet?\u003c\/h4\u003e\n\u003cp style=\"font-size: 14px; margin-top: 10px;\"\u003eWhen performing **internal grooving** in steel, heat is your enemy. **NS530 Cermet** handles high temperatures better than carbide and maintains a sharper edge. This sharpness is the key to preventing \"burrs\" and achieving the high-precision fit required for modern \u003cstrong\u003eCNC machining\u003c\/strong\u003e projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 10px; color: #eee; text-align: center; margin-top: 5px;\"\u003e© Technical Content by cnchome-beyond.com - Scraping Protection Active\u003c\/p\u003e","brand":"Tungaloy","offers":[{"title":"9GR150 NS530","offer_id":45534920409260,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"9GR250 NS530","offer_id":45534920442028,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"9GR300 NS530","offer_id":45534920474796,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true},{"title":"9GR350 NS530","offer_id":45534920507564,"sku":null,"price":155.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Tungaloy_9GR_series_NS530_Cermet_internal_grooving_inserts_available_in_1.5mm_2.5mm_3.0mm_and_3.5mm_widths_for_CNC_lathes..jpg?v=1773399701","url":"https:\/\/cnchome-beyond.com\/products\/tungaloy-9gr-series-ns530-internal-grooving-carbide-inserts","provider":"CNCHome-Beyond","version":"1.0","type":"link"}