{"product_id":"kennametal-3753781-turning-insert-dnmg431mn-kcp30-carbide","title":"Kennametal 3753781 Turning Insert DNMG431MN KCP30 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 3753781 is a DNMG431MN turning insert in grade KCP30, designed for external and internal turning operations on CNC lathes and machining centers. The insert is manufactured from solid carbide with a multilayer CVD coating consisting of TiN, TiCN, and Al2O3 applied via MTCVD process. This coating stack delivers moderate wear resistance combined with high toughness, making the insert well suited to interrupted cuts and variable-condition passes. The 55-degree diamond (rhombic) shape provides a useful combination of edge strength and access angle. At 15.5 mm in length with a 0.5-inch inscribed circle and a 1\/64-inch corner radius, this insert seats into KENLOC-style toolholders and is positioned and held by clamp and pin. Machinists and CNC operators in production and job-shop environments install and index this insert.\u003c\/p\u003e\u003cp\u003eThe MN chip breaker geometry is rated for roughing and medium machining operations. Primary workpiece material classifications are Steel (P) and Stainless Steel (M), where the KCP30 grade provides a balance of moderate wear resistance and toughness appropriate for those material groups. The insert geometry is neutral-hand with a negative rake and negative side clearance, consistent with DNMG toolholder seating. Multi-use applications include turning, facing, boring, back turning, and back boring. With four cutting edges per insert, the 3753781 offers extended tool life per unit on high-volume turning programs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKCP30 grade with multilayer CVD coating: TiN, TiCN, and Al2O3 for steel and stainless steel cutting\u003c\/li\u003e\n\u003cli\u003eMN chip breaker geometry rated for roughing and medium machining\u003c\/li\u003e\n\u003cli\u003e55-degree diamond insert shape (ANSI code DNMG431, ISO code DNMG150404) for turning, facing, boring, and back boring\u003c\/li\u003e\n\u003cli\u003eFour usable cutting edges per insert\u003c\/li\u003e\n\u003cli\u003eNegative rake and negative side clearance with chamfered and honed cutting edge style\u003c\/li\u003e\n\u003cli\u003eClamp and pin holding method compatible with KENLOC-series toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in KENLOC-series toolholders accepting DNMG431 insert geometry with clamp and pin holding. Conforms to ANSI and ISO standards for DNMG insert seating.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert indexing and replacement is performed by the CNC operator or machinist with the spindle stopped and the machine in a safe, locked-out state. Seat the insert fully against all pocket surfaces before tightening the clamp; an improperly seated insert can fracture under cutting load. Inspect the insert pocket for carbide debris from the previous edge before seating a fresh edge. Follow the toolholder manufacturer torque specification for the clamping screw.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DNMG431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DNMG150404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: DNMG431MN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCP30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN, TiCN, Al2O3 (Multilayer CVD \/ MTCVD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: 55-Degree Diamond (Rhombic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: MN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker Operation\u003c\/strong\u003e: Roughing, Medium Machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 15.5 mm (0.6099 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (1\/64 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1.25 mm (0.0492 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\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Chamfered, Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P), Stainless Steel (M)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, C6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3753781\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51730025939250,"sku":"3753781","price":235.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c9436af249d878ffd200d811e10e97ca.jpg?v=1788710410","url":"https:\/\/voomisupply.com\/products\/kennametal-3753781-turning-insert-dnmg431mn-kcp30-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}