{"product_id":"kennametal-3640769-solid-carbide-jobber-drill-21-64-in","title":"Kennametal 3640769 Solid Carbide Jobber Drill 21\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 3640769 is a solid carbide jobber-length drill bit designed for high-performance hole-making in demanding materials. It features a 21\/64-inch (0.3281-inch) diameter, a 140-degree split point, and an AlTiN coating that extends tool life in abrasive and high-heat cutting conditions. The overall length is 4.0551 inches (103.00 mm) with a 2.4016-inch (61.00 mm) flute length. The drill meets DIN 6537K specification and includes a web-thinned, tapered web design to reduce entry force and improve chip evacuation. Licensed machinists and toolroom professionals install this drill in CNC machining centers and conventional drill presses.\u003c\/p\u003e\n\u003cp\u003eThis drill is suited for production drilling in steel, stainless steel, and high-temperature alloys — materials that demand a rigid, heat-resistant tool. The straight cylindrical shank (0.2500-inch diameter) seats in standard ER collet chucks and drill chucks without modification. The 5xD flute-to-diameter ratio supports deep-hole drilling up to 49.00 mm. Coolant-through capability allows internal coolant delivery directly to the cutting edge, making this drill practical for high-speed, high-feed operations in job-shop and production environments alike.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and long tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating provides oxidation resistance and reduced friction at elevated cutting temperatures\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle minimizes walking and reduces thrust force on entry\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web design improves chip flow and lowers cutting resistance\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design delivers cutting fluid directly to the drill tip for heat management\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 6537K specification for consistent geometry and dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for primary use in steel, stainless steel, and high-temperature alloys. Straight cylindrical shank is compatible with standard ER collet systems and drill chucks sized for a 0.2500-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and setup should be performed by a qualified machinist or toolroom technician. Confirm spindle and workholding are fully secured and the machine is in a safe, ready state before inserting or removing the tool. Use the appropriate collet or chuck rated for the 0.2500-inch shank diameter and verify runout with a dial indicator before production drilling. When using coolant-through capability, confirm coolant supply pressure is within the machine spindle's rated range before starting the cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 21\/64 inches (0.3281 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.0551 inches (103.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.4016 inches (61.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2500 inches (25\/64 inches, 10 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 49.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular 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\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: 0.006 to 0.021 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, High-Temp Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: 3640769\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731930153266,"sku":"3640769","price":422.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9aa3ea89323861a55cb9d1ffe34d0ff5_1e05f233-1db8-4c24-a112-d1c14a82ccdc.jpg?v=1788736783","url":"https:\/\/voomisupply.com\/products\/kennametal-3640769-solid-carbide-jobber-drill-21-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}