{"product_id":"kennametal-1157963-indexable-drill-insert-dftld-kc720","title":"Kennametal 1157963 Indexable Drill Insert Dftld KC720","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1157963 is a solid carbide indexable drill insert designed for precision drilling applications in metal cutting operations. Manufactured to the DFTLD style with a Trigon (84-degree included angle) geometry, this insert features a PVD-applied TiN coating over the KC720 carbide grade substrate. The 6 mm inscribed circle, 0.4 mm corner radius, and LD chipbreaker geometry work together to manage chip flow and reduce cutting forces in demanding drilling cycles. Licensed machinists and CNC operators working in production environments install these inserts in compatible indexable drill bodies where repeatable hole quality and insert-to-insert consistency are critical.\u003c\/p\u003e\u003cp\u003eThis insert is suited for indexable drilling applications in ferrous and non-ferrous materials where the KC720 grade and TiN PVD coating deliver extended tool life. The LD chipbreaker is optimized for drilling operations requiring controlled chip formation in light-to-medium feed conditions. Material grades C1 through C5 cover a broad range of workpiece materials including carbon steels, alloy steels, and cast irons. The 030304 insert size designator and 84-degree Trigon shape are standard references when cross-referencing toolholder seat requirements for indexable drill systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide substrate with KC720 manufacturer grade for wear resistance in steel and cast iron drilling\u003c\/li\u003e\n\u003cli\u003ePVD TiN coating reduces built-up edge and extends cutting life compared to uncoated inserts\u003c\/li\u003e\n\u003cli\u003eLD chipbreaker geometry promotes controlled chip formation at moderate feed rates\u003c\/li\u003e\n\u003cli\u003e84-degree Trigon shape with 8-degree relief angle provides positive cutting action and clearance\u003c\/li\u003e\n\u003cli\u003e0.4 mm corner radius balances edge strength and surface finish requirements\u003c\/li\u003e\n\u003cli\u003e6 mm inscribed circle with 2.65 mm mounting hole diameter for precise seat engagement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in indexable drill bodies and toolholders specifying the DFT insert style with a 030304 insert size, 84-degree Trigon geometry, and a 2.65 mm hole diameter seat. Verify toolholder documentation for exact insert style and size requirements before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eIndexable drill inserts are installed and replaced by machinists or CNC tooling technicians following machine-specific lockout and tool-change procedures. Ensure the spindle is fully stopped and the machine is in a safe state before accessing the toolholder. Use the manufacturer-recommended torx or hex key for the insert clamping screw and do not overtighten, as carbide inserts are brittle and can crack under excess clamping force. Inspect the toolholder seat for debris, chips, or wear before seating 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\u003eChipbreaker\u003c\/strong\u003e: LD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Trigon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 84 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC720\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C1, C5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 6.00 mm (0.2362 inches)\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\u003eThickness\u003c\/strong\u003e: 0.1161 inches (3.97 mm length reference)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.1563 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 2.65 mm (0.1043 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 8 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 030304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.002 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: 1157963\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51732071907634,"sku":"1157963","price":185.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d9f0df88b6fe9ad05118ca209bec7687.jpg?v=1788738879","url":"https:\/\/voomisupply.com\/products\/kennametal-1157963-indexable-drill-insert-dftld-kc720","provider":"Voomi Supply","version":"1.0","type":"link"}