{"product_id":"triumph-twist-drill-060427-screw-machine-drill-bit-27-64-in","title":"Triumph Twist Drill 060427 Screw Machine Drill Bit 27\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe TRIUMPH TWIST DRILL 060427 is a screw machine length (stub) drill bit engineered for heavy-duty drilling in metal and industrial materials. Built from high-speed steel with an oxide coating for added surface hardness and corrosion resistance, it features a 135-degree split point that reduces walking on entry and lowers the thrust needed to start a hole. The web-thinned, tapered-web design keeps cutting forces manageable throughout the full 2-inch spiral flute length. Right-hand cutting with a straight cylindrical shank, this bit fits standard drill chucks without modification. It is part of the T4HD series, which is rated for heavy-duty production and maintenance use.\u003c\/p\u003e\u003cp\u003eThis bit is suited for machinists, maintenance technicians, and fabricators working on short-reach drilling applications where a stub-length bit provides added rigidity and reduced deflection compared to jobber-length drills. The screw machine length format is common in drill press, CNC, and manual machining operations where close-tolerance hole location matters. The 27\/64-inch diameter and 3-3\/8-inch overall length make it a practical choice for clearance holes, stepped drilling, and pre-tap operations in steel, cast iron, aluminum, and similar materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-speed steel construction rated for heavy-duty drilling applications\u003c\/li\u003e\n\u003cli\u003eOxide coating improves surface hardness and provides basic corrosion resistance\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces bit walking and cutting entry thrust\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered-web geometry lowers cutting resistance throughout the flute\u003c\/li\u003e\n\u003cli\u003eStub screw machine length adds rigidity and minimizes deflection\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard 3-jaw and keyless drill chucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or standard addition for any drill press, CNC machining center, or hand drill using a straight-shank chuck sized to accept a 27\/64-inch diameter bit.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and serviced by machinists, tool-and-die technicians, and maintenance professionals. Always power down and lock out the machine before changing bits. Seat the shank fully and evenly in the chuck before tightening to prevent runout. Use appropriate cutting fluid for the workpiece material to extend bit life and maintain hole quality.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 27\/64 inches (0.4200 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2 inches\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\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T4HD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.59 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241635\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TRIUMPH TWIST DRILL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 060427\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRIUMPH TWIST DRILL","offers":[{"title":"Default Title","offer_id":67911075561778,"sku":"060427","price":21.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a41da289ed19617360fbec8886d3c6ed.jpg?v=1791203989","url":"https:\/\/voomisupply.com\/products\/triumph-twist-drill-060427-screw-machine-drill-bit-27-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}