{"product_id":"kennametal-5066192-indexable-drill-insert-dfrgd-kcu40","title":"Kennametal 5066192 Indexable Drill Insert Dfrgd KCU40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 5066192 is a solid carbide indexable drill insert designed for use in indexable drilling applications requiring precise hole geometry and reliable edge life. Featuring the DFRGD insert style with a GD chipbreaker, this insert carries a KCU40 grade designation and is PVD-coated with a TiN\/TiAlN multilayer finish for enhanced wear resistance and thermal stability. The inscribed circle measures 8 mm (0.3150 inches), with a thickness of 0.1492 inches and a corner radius of 1\/64 inch (0.0156 inches). It is suited for metalcutting professionals working in production drilling environments where insert-to-insert consistency and coating durability are critical.\u003c\/p\u003e\u003cp\u003eThis insert is used in indexable drill bodies that accept DFRGD-style inserts in the corresponding seat size. Typical applications include through-hole and blind-hole drilling operations in ferrous and non-ferrous materials across job shop, aerospace, and general machining environments. The neutral hand designation makes it compatible with standard centerline drill configurations. Install in the correct seat position per the drill body manufacturer specifications, as insert hand and geometry are matched to specific pocket locations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKCU40 carbide grade with PVD-applied TiN\/TiAlN coating for improved wear resistance and edge stability\u003c\/li\u003e\n\u003cli\u003eGD chipbreaker geometry promotes controlled chip evacuation in drilling operations\u003c\/li\u003e\n\u003cli\u003e8 mm inscribed circle (0.3150 inches) with insert size designation 040304\u003c\/li\u003e\n\u003cli\u003eCorner radius of 1\/64 inch (0.40 mm) for defined edge transition at drill periphery\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation for use in standard centerline drill body seats\u003c\/li\u003e\n\u003cli\u003eSolid carbide substrate provides rigidity and dimensional consistency under high feed conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement insert for indexable drill bodies that accept DFRGD-style solid carbide inserts with an 8 mm inscribed circle and 040304 insert size designation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before seating or removing inserts. Use the correct torx or hex key as specified by the drill body manufacturer to achieve proper clamping torque — do not overtighten, as carbide inserts are brittle and can fracture under excessive clamp load. Inspect the insert pocket for debris, damage, or wear before seating a new insert to ensure full surface contact and accurate positioning.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DFR\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: KCU40\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\/TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\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: 040304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 8.00 mm (0.3150 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inch (0.0156 inches \/ 0.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1492 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\u003eWidth\u003c\/strong\u003e: 0.286 inches\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: 0.006 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: 5066192\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51752061468978,"sku":"5066192","price":354.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e066ad7eb58180dbcd5b9d507f8fac3c.jpg?v=1788925583","url":"https:\/\/voomisupply.com\/products\/kennametal-5066192-indexable-drill-insert-dfrgd-kcu40","provider":"Voomi Supply","version":"1.0","type":"link"}