{"product_id":"accupro-75286518-tnmg331-carbide-turning-insert","title":"Accupro 75286518 TNMG331 Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 75286518 is a TNMG-style indexable carbide turning insert designed for external and internal turning operations on CNC lathes and turning centers. Featuring a triangular insert shape with a 60-degree included angle and a neutral hand orientation, it is manufactured in grade ACP25M with a CVD coating for extended tool life. The corner radius measures 0.40 mm (0.0157 inches), and the insert delivers up to 0.1575 inches maximum depth of cut. With 6 cutting edges per insert and a WM+ chip breaker geometry, this insert is suited for production turning applications across multiple workpiece material categories. Machinists and CNC operators install this insert in compatible TNMG toolholders.\u003c\/p\u003e\u003cp\u003eThis insert is engineered for turning steel, stainless steel, and cast iron workpieces, covering ISO material groups P, M, and K. The ACP25M grade with CVD coating provides high wear resistance across the P and K classifications and a balance of wear resistance and toughness for M-grade stainless steel applications. It is a practical choice for job shops and production facilities running medium to high-volume turning operations where consistent edge life and surface finish are required. The WM+ chip breaker geometry supports reliable chip control across a range of feeds and depths typical in finish to semi-finish turning.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTNMG triangle insert shape with 60-degree included angle and 6 usable cutting edges\u003c\/li\u003e\n\u003cli\u003eACP25M grade with CVD coating for high wear resistance on steel, stainless steel, and cast iron\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.40 mm (0.0157 inches) for controlled surface finish in finish and semi-finish turning\u003c\/li\u003e\n\u003cli\u003eWM+ chip breaker geometry promotes reliable chip evacuation across P, M, and K material groups\u003c\/li\u003e\n\u003cli\u003eNeutral hand design for use in both right-hand and left-hand TNMG toolholders\u003c\/li\u003e\n\u003cli\u003eMaximum depth of cut of 4.00 mm (0.1575 inches) suitable for semi-finish and moderate stock removal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for TNMG-style indexable turning insert toolholders accepting ANSI code TNMG331 or ISO code TNMG160404 inserts with a screw, clamp, lever lock, or pin holding method.\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 the toolholder is secured in the turret before indexing or replacing the insert. Use the appropriate torque driver for the insert holding method — screw, clamp, lever lock, or pin — per the toolholder manufacturer specification. Inspect the insert seat and toolholder pocket for chips or debris before seating the new insert to prevent improper clamping and premature edge failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: TNMG331\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: TNMG160404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: T - Triangle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: ACP25M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: WM+\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.40 mm (0.0157 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 6\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\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 9.53 mm (0.3752 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 4.76 mm (0.1874 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1512 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 4.00 mm (0.1575 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Lever Lock, Pin, Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P), Stainless Steel (M), Cast Iron (K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 75286518\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51738939883826,"sku":"75286518","price":164.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0f40d6d1193f820428b34edd4d167006_c94c04db-78c9-40bb-a008-de06558280c9.jpg?v=1788807066","url":"https:\/\/voomisupply.com\/products\/accupro-75286518-tnmg331-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}