{"product_id":"kyocera-tsj00259-turning-insert-cnmg4305gp-tn60-cermet","title":"Kyocera TSJ00259 Turning Insert CNMG4305GP TN60 Cermet","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KYOCERA TSJ00259 is a CNMG-style cermet turning insert engineered for precision metal cutting in CNC and manual turning operations. Carrying the TN60 manufacturer grade, this insert features a TiCN plus NbC coating classification on a cermet substrate, delivering consistent performance in finishing and semi-finishing passes. The insert has an 80-degree diamond shape with a negative rake angle of -10 degrees, a honed cutting edge, and four usable cutting edges per insert. The corner radius measures 0.0080 inches, insert length is 0.5000 inches, and insert thickness is 0.1875 inches. It conforms to ANSI and ISO standards and carries ISO code CNMG120402GP.\u003c\/p\u003e\u003cp\u003eThis insert is suited for external turning, boring, facing, internal facing, and chamfering operations on steel and stainless steel workpieces. Material grade designations P01, P10, and P20 confirm its primary application in steel cutting with secondary capability on stainless steel. The GP chip breaker geometry supports controlled chip formation across a range of depths of cut up to 0.1667 inches. It is intended for production environments where dimensional consistency and insert-to-insert repeatability are required. Holding method is clamp and pin, compatible with standard CNMG toolholders.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTN60 cermet grade with TiCN plus NbC coating for wear resistance in steel turning\u003c\/li\u003e\n\u003cli\u003e80-degree diamond insert shape (Shape Code C) with negative rake for stable cutting geometry\u003c\/li\u003e\n\u003cli\u003eGP chip breaker optimized for steel and stainless steel finishing to semi-finishing applications\u003c\/li\u003e\n\u003cli\u003eFour cutting edges per insert maximizes tooling economy\u003c\/li\u003e\n\u003cli\u003eHoned cutting edge style reduces microchipping on entry and exit\u003c\/li\u003e\n\u003cli\u003eClamp and pin holding method compatible with standard CNMG toolholder systems\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and ISO standards; ISO code CNMG120402GP\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard CNMG toolholders accepting a 0.5000-inch inscribed circle insert with clamp and pin retention. Compatible with primary workpiece material Steel (P-grade) and secondary workpiece material Stainless Steel (M-grade). Multi-use application includes boring, external turning, chamfering, facing, and internal facing.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and all motion is locked out before indexing or replacing inserts. Seat the insert fully against the toolholder pocket before tightening the clamp; an improperly seated insert can fracture under cutting load. Verify toolholder pocket condition and clean any chips or debris from the seating surface prior to each insert change.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: TN60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Cermet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiCN; NbC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: Uncoated Classification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape Code\u003c\/strong\u003e: C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 80 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: -10 degrees (Negative)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: GP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0080 inches (1\/128 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.5000 inches (1\/2 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (1\/2 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2032 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.1667 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp; Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Stainless Steel (M)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: P01; P10; P20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMG120402GP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: CNMG4305GPTN60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI; ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: ISOI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Boring; External Turning; Chamfering; Facing; Internal Facing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.13 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KYOCERA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TSJ00259\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KYOCERA","offers":[{"title":"Default Title","offer_id":51748464886066,"sku":"TSJ00259","price":149.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/60b092a8c8d2d9027767d89be9521443.jpg?v=1788894133","url":"https:\/\/voomisupply.com\/products\/kyocera-tsj00259-turning-insert-cnmg4305gp-tn60-cermet","provider":"Voomi Supply","version":"1.0","type":"link"}