{"product_id":"kennametal-2658406-taper-length-drill-bit-13-32-in","title":"Kennametal 2658406 Taper Length Drill Bit 13\/32 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 2658406 is a taper length solid carbide drill bit from the B978 series, designed for high-performance drilling in cast iron and steel. It features a 132-degree point angle, TiAlN coating for heat and wear resistance, and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The straight cylindrical shank measures 0.4724 inches in diameter and is compatible with standard drill chucks and collet holders. Coolant-through capability supports high-feed applications where chip control and tool life are critical. This bit is sized at 13\/32 inches (0.4062 inches decimal) and conforms to DIN 6537K.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for production and maintenance machining environments where ferrous materials such as cast iron and steel are the primary workpiece. The spiral flute geometry with right-hand cut makes it appropriate for use in CNC machining centers, drill presses, and production lathes. The taper length format provides additional reach compared to jobber-length bits while maintaining rigidity. It is installed and used by machinists, tool-and-die professionals, and production drilling operations requiring tight tolerance and consistent hole quality.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction with TiAlN coating for extended tool life in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e132-degree point angle with web-thinned, tapered web for reduced entry thrust\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports high-speed, high-feed drilling cycles\u003c\/li\u003e\n  \u003cli\u003eSpiral flute, right-hand cut geometry for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank at 0.4724 inches for broad holder compatibility\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6537K specification for consistent dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling cast iron and steel. Straight cylindrical shank accepts standard drill chucks and collet systems sized for 0.4724-inch shank diameter. Conforms to DIN 6537K.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists familiar with carbide tooling requirements. Ensure the machine spindle and chuck are powered down and locked out before mounting or removing the bit. Carbide tooling is brittle — avoid side loading, interrupted cuts without proper feed adjustment, or dropping the bit on hard surfaces. Verify coolant-through supply lines are connected and functioning before initiating high-feed cycles.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 13\/32 inches (0.4062 inches)\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\u003ePoint Angle\u003c\/strong\u003e: 132 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.7008 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.5512 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.4724 inches (12.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.7717 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 3.1100 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.0860 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.007 to +0.025 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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: 0.2866 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 2658406\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731353207090,"sku":"2658406","price":655.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/636ec112b2b3d441ab8f35cf492e4b34.jpg?v=1788729880","url":"https:\/\/voomisupply.com\/products\/kennametal-2658406-taper-length-drill-bit-13-32-in","provider":"Voomi Supply","version":"1.0","type":"link"}