{"product_id":"hertel-74146440-taper-length-drill-bit-5-64-in-cobalt","title":"Hertel 74146440 Taper Length Drill Bit 5\/64 in Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 74146440 is a taper length twist drill bit built for demanding metal-cutting applications. Manufactured from cobalt high-speed steel and finished with a TiAlN coating, it delivers heat resistance and wear life well beyond standard HSS bits. The 135-degree split point reduces walking and cutting force at entry, making it well suited for hard and work-hardening materials. The straight cylindrical shank allows use in standard drill chucks without an adapter. Machinists, maintenance technicians, and fabricators reach for this bit when working in alloy steel or stainless steel where tool life matters.\u003c\/p\u003e\u003cp\u003eThis bit is designed for taper length drilling operations in ferrous metals, including alloy steel and stainless steel. The 2-inch flute length and 3.75-inch overall length make it appropriate for moderate-depth holes where a jobber-length bit may lack rigidity or a long-series bit would be excessive. The right-hand spiral flute evacuates chips efficiently in both hand-held and machine-spindle setups. It is sold individually and typically used in drill presses, CNC machining centers, and manual knee mills.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt steel construction resists heat buildup when cutting hard ferrous alloys\u003c\/li\u003e\n\u003cli\u003eTiAlN coating extends surface hardness and reduces friction at elevated temperatures\u003c\/li\u003e\n\u003cli\u003e135-degree split point starts on contact and reduces thrust force\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web reduces cutting resistance through the full flute depth\u003c\/li\u003e\n\u003cli\u003eRight-hand regular spiral flute promotes consistent chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard drill chucks without a reduction sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style taper length drill bit suitable for use in alloy steel and stainless steel applications with standard straight-shank drill chucks and collet holders.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or maintenance technicians in machine shop or field fabrication settings. Secure the shank fully in a properly sized drill chuck or collet before operation. Use appropriate cutting fluid or coolant for stainless steel or alloy steel to maximize tool life, noting this bit does not support through-spindle coolant delivery. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is present.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 5\/64 inch (0.0781 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\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\u003eShank Diameter\u003c\/strong\u003e: 5\/64 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 74146440\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51742724882738,"sku":"74146440","price":109.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64bd03c1071a1b2e4d154fca24c6e7aa.jpg?v=1788839094","url":"https:\/\/voomisupply.com\/products\/hertel-74146440-taper-length-drill-bit-5-64-in-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}