{"product_id":"kennametal-3648474-indexable-drill-insert-dftmd-kc7140","title":"Kennametal 3648474 Indexable Drill Insert Dftmd KC7140","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 3648474 is a solid carbide indexable drill insert designed for use in indexable drilling tool bodies that accept DFT-style inserts. It features the KC7140 manufacturer grade with a PVD-applied TiCN and TiN dual-layer coating, delivering wear resistance and heat control during high-feed drilling operations. The insert carries an 84-degree trigon shape with a neutral hand orientation, a 0.4724 inch (12 mm) inscribed circle, and a 0.0313 inch (0.79 mm) corner radius. A 9-degree relief angle and the MD chipbreaker geometry help control chip flow and reduce cutting forces. This insert is installed and serviced by machinists and tooling technicians in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis insert is suited for use in metal-cutting drilling operations on CNC machining centers, lathes with live tooling, and manual drilling setups where indexable carbide tooling is specified. It is appropriate for applications in steel, cast iron, and similar materials where PVD-coated carbide grades are commonly selected. The MD chipbreaker designation is intended for medium-duty drilling conditions. Insert size designation is 070408, with a length of 0.3126 inches (7.94 mm) and a hole diameter of 0.1732 inches (4.4 mm), making it compatible with tool bodies specifying those dimensions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKC7140 grade with PVD TiCN and TiN dual-layer coating for wear and thermal resistance\u003c\/li\u003e\n\u003cli\u003e84-degree trigon (triangular) insert shape with neutral hand orientation\u003c\/li\u003e\n\u003cli\u003eMD chipbreaker geometry for medium-duty drilling chip control\u003c\/li\u003e\n\u003cli\u003e12 mm (0.4724 inch) inscribed circle with 0.79 mm (0.0313 inch) corner radius\u003c\/li\u003e\n\u003cli\u003e9-degree relief angle to reduce flank wear during drilling\u003c\/li\u003e\n\u003cli\u003eInsert size 070408 for direct cross-reference in compatible DFT-style tool bodies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement insert for indexable drill tool bodies that accept DFT insert style, 070408 insert size, with a 4.4 mm mounting hole diameter. Verify tool body specifications before ordering.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Power down and lock out the machine before indexing or replacing inserts. Use the correct torx or hex key specified by the tool body manufacturer when seating the insert and tighten only to the tool body manufacturer's specified procedure. Inspect the insert pocket and clamping screw for wear or damage before installing a new insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DFT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Trigon (84 degrees included angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 070408\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC7140\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: TiCN and TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: MD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 12 mm (0.4724 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0313 inches (0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.3126 inches (7.94 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 9 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1732 inches (4.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.017 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 3648474\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51730043535666,"sku":"3648474","price":255.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f831e4619e57eb09c41826cf9ea83193.jpg?v=1788710698","url":"https:\/\/voomisupply.com\/products\/kennametal-3648474-indexable-drill-insert-dftmd-kc7140","provider":"Voomi Supply","version":"1.0","type":"link"}