{"product_id":"kennametal-1806437-indexable-drill-insert-dfrgd-kc7140","title":"Kennametal 1806437 Indexable Drill Insert Dfrgd KC7140","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1806437 is a solid carbide indexable drill insert designed for use in indexable drilling operations on CNC machining centers and drill presses. Featuring the DFRGD insert style with a GD chipbreaker and KC7140 manufacturer grade, this insert is PVD-coated with TiN and TiCN layers to extend tool life and improve wear resistance in demanding cutting applications. It carries a 0.315-inch inscribed circle, a thickness of 0.1492 inches, and a corner radius of 0.40 mm (0.0157 inches). The insert size designation is 040304. Machinists, tooling specialists, and CNC operators working in metalcutting environments install this insert as part of a modular indexable drill body system.\u003c\/p\u003e\u003cp\u003eThis insert is suited for machining operations involving materials classified under C5 and C6 material grades, which correspond to general steel, cast iron, and harder workpiece materials. The GD chipbreaker geometry promotes effective chip evacuation at moderate to high feed rates. Typical applications include production drilling in job shops, aerospace component manufacturing, and general metalworking facilities where indexable tooling is preferred over solid-shank drills for cost efficiency and repeatability. The 0.1122-inch hole diameter accepts standard insert-retaining screws used in compatible drill bodies.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDFRGD insert style with GD chipbreaker for controlled chip formation\u003c\/li\u003e\n\u003cli\u003eKC7140 grade with PVD-applied TiN and TiCN coating for wear resistance\u003c\/li\u003e\n\u003cli\u003e0.315-inch inscribed circle and 040304 insert size designation\u003c\/li\u003e\n\u003cli\u003e0.40 mm corner radius for edge strength and surface finish\u003c\/li\u003e\n\u003cli\u003eCompatible with C5 and C6 material grade workpieces including steel and cast iron\u003c\/li\u003e\n\u003cli\u003eSolid carbide substrate for rigidity in high-feed drilling applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style indexable drill insert for use in compatible KENNAMETAL indexable drill body systems that accept the DFRGD insert style and 040304 insert size. Verify drill body compatibility using the insert style, inscribed circle, and hole diameter before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine before seating or removing inserts. Use the correct torx or hex key to engage the retaining screw to the drill body manufacturer's recommended procedure  -  do not overtighten by feel alone. Inspect the insert pocket for chips or damage before seating the new insert to ensure proper seating and runout.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DFRGD\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: KC7140\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, C6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: GD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: TiN, TiCN\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: 0.315 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 040304\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: 0.1492 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.2906 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.4236 inches (10.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1122 inches (2.85 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0055 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\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: 1806437\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51740136210738,"sku":"1806437","price":180.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4da0b21f9ced124efe91188fbd9fdb70.jpg?v=1788822737","url":"https:\/\/voomisupply.com\/products\/kennametal-1806437-indexable-drill-insert-dfrgd-kc7140","provider":"Voomi Supply","version":"1.0","type":"link"}