{"product_id":"kennametal-2658412-taper-length-drill-bit-1-2-in-carbide","title":"Kennametal 2658412 Taper Length Drill Bit 1\/2 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 2658412 is a taper length drill bit engineered for high-performance drilling in ferrous materials. Built from solid carbide and coated with TiAlN, this bit delivers extended tool life and heat resistance in demanding production environments. It features a 132-degree point angle, a spiral flute with web-thinning for improved chip evacuation, and coolant-through capability to manage heat at the cutting zone. The straight cylindrical shank measures 0.5512 inches in diameter and seats securely in standard drill chucks or collet holders. Licensed machinists, tool-and-die technicians, and metalworking professionals will find this bit appropriate for both CNC and manual drilling operations requiring tight tolerances.\u003c\/p\u003e\u003cp\u003eThis drill bit is designed for drilling cast iron and steel. The tapered web configuration and web-thinned point reduce entry resistance and centering load, making it well-suited for through-hole and blind-hole work in structural and machined steel components. It conforms to DIN 6537K geometry standards, which specifies taper length drills with straight shanks. The 1\/2-inch diameter and 6-inch overall length position it for medium-depth production drilling where a jobber-length bit would be too short and a extra-long bit would introduce deflection.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for high rigidity and wear resistance in ferrous materials\u003c\/li\u003e\n\u003cli\u003eTiAlN coating improves heat resistance and extends tool life in dry or light-coolant cutting\u003c\/li\u003e\n\u003cli\u003e132-degree point angle with web-thinned, tapered web for reduced thrust and clean entry\u003c\/li\u003e\n\u003cli\u003eCoolant-through design delivers cutting fluid directly to the drill tip for deep-hole applications\u003c\/li\u003e\n\u003cli\u003eSpiral flute with right-hand cut promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6537K specification for consistent geometry and interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in cast iron and steel machining applications. Fits standard straight-shank drill chucks and collet systems accepting a 0.5512-inch shank diameter. Conforms to DIN 6537K taper length drill geometry.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of this drill bit should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully powered down and the tool holder is clean and free of debris before seating the shank. Verify runout with a dial indicator before production drilling to prevent premature edge wear. When using the coolant-through feature, confirm that coolant pressure and flow rate are appropriate for the machine spindle before starting the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: B978\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 132 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4.252 inches (108 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches (155 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5512 inches (14 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.7717 inches (45 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 3.5827 inches (91 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.1063 inches (2.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.007 to +0.025 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4184 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: 2658412\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51750835388722,"sku":"2658412","price":883.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5926aa12c4a8dc9305dca63db63e90a2_9aa16072-d49f-431b-9a99-41bb215f841f.jpg?v=1788920082","url":"https:\/\/voomisupply.com\/products\/kennametal-2658412-taper-length-drill-bit-1-2-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}