{"product_id":"import-bdna-20927-1-drill-bit-31-64-inch-hss-weldon","title":"Import BDNA--20927-1 Drill Bit 31\/64 Inch Hss Weldon","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe IMPORT BDNA--20927-1 is a mechanics drill bit designed for general-purpose metal drilling in demanding trade and industrial applications. It measures 31\/64 inches (0.4844 inches decimal) in diameter with a 4-7\/8 inch overall length and a 3-1\/4 inch flute length. The 135-degree split point reduces walking on contact and allows drilling without a center punch on most metal surfaces. Constructed from high-speed steel with an oxide finish, this bit is built for repeated use across a range of ferrous metals. The Weldon flat shank with three flats provides positive engagement in compatible chucks, minimizing slippage under torque.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for use on carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. It fits standard drilling applications in fabrication shops, maintenance environments, and field service work where consistent, accurate hole sizing in metal is required. The right-hand spiral flute design with web-thinned, parallel web configuration supports efficient chip evacuation during through-hole drilling. This bit is a single-piece, individually packaged unit appropriate for bench drill presses and handheld drill motors equipped with Weldon-compatible chucks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point reduces drill walking and eliminates the need for center-punching on most metals\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction provides heat resistance during extended drilling cycles\u003c\/li\u003e\n\u003cli\u003eOxide finish helps resist corrosion and light surface wear\u003c\/li\u003e\n\u003cli\u003eWeldon flat shank with three flats ensures positive chuck engagement and reduces bit slippage\u003c\/li\u003e\n\u003cli\u003eWeb-thinned parallel web reduces thrust force required during drilling\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with regular spiral flutes for efficient chip removal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in drill presses and handheld drill motors equipped with Weldon flat shank chucks. Suitable for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the Weldon flat shank firmly in a compatible three-flat chuck before operation to prevent rotation or pullout under load. Always reduce feed pressure as the bit exits the workpiece to avoid grabbing. Power down and disconnect the drill motor before changing bits or inspecting the cutting edge. Wear appropriate eye protection and secure the workpiece before drilling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 31\/64 inches (0.4844 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3-1\/4 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\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\u003eShank Type\u003c\/strong\u003e: Weldon Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flats\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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: Parallel, Web-Thinned\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: 0.01 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: IMPORT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: BDNA--20927-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMPORT-GENERIC","offers":[{"title":"Default Title","offer_id":51697438687538,"sku":"BDNA--20927-1","price":33.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0ce7bf02bee9b32715b9e3dfe2e3e3d9.jpg?v=1788351652","url":"https:\/\/voomisupply.com\/products\/import-bdna-20927-1-drill-bit-31-64-inch-hss-weldon","provider":"Voomi Supply","version":"1.0","type":"link"}