{"product_id":"import-bdna-20925-1-mechanics-drill-bit-29-64-inch-hss","title":"Import BDNA--20925-1 Mechanics Drill Bit 29\/64 Inch Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe IMPORT BDNA--20925-1 is a mechanics-length drill bit designed for general-purpose metal drilling in professional and industrial settings. It measures 29\/64 inch (0.4531 inch) in diameter with a 135-degree split point that reduces walking and allows drilling to start without a center punch. The bit is manufactured from high speed steel (HSS) and features an oxide finish for basic corrosion and heat resistance. The Weldon shank with three flats prevents slipping in compatible chucks. Overall length is 4-5\/8 inches with a 3-inch spiral flute length. Machinists, maintenance technicians, and fabricators use this bit for through-hole and blind-hole work in ferrous metals.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. The mechanics length makes it a practical choice for confined-space drilling and bench-top drill press work where a jobber-length bit would be excessive. The right-hand cut and regular spiral flute promote efficient chip evacuation on common structural metals. It is sold individually and is well suited for maintenance, repair, and fabrication operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e29\/64 inch diameter with 0.4531 inch decimal equivalent for precise sizing\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces entry force and eliminates center-punching in many applications\u003c\/li\u003e\n\u003cli\u003eWeldon shank with 3 flats prevents chuck slip under torque\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction handles ferrous metal drilling at standard spindle speeds\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, parallel web configuration improves chip clearance and reduces thrust\u003c\/li\u003e\n\u003cli\u003eOxide finish provides baseline heat and corrosion resistance for general shop use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in drill presses and hand drills equipped with Weldon-shank or set-screw chucks accepting a 3-flat shank. Suitable for general-purpose drilling in 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\u003eThis bit is installed by a machinist or maintenance technician into a Weldon-compatible chuck or end-mill holder; tighten the set screw against one of the three flats to secure the shank before operation. Ensure the drill press or hand drill is powered off and isolated before changing bits. Do not exceed the recommended spindle speed for the workpiece material and bit diameter. Use appropriate cutting fluid on stainless and high alloy steel to extend bit life and reduce heat buildup.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 29\/64 inch (0.4531 inch)\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\u003eShank Type\u003c\/strong\u003e: Weldon\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\u003eDrill Length Type\u003c\/strong\u003e: Mechanics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3 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: Parallel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Carbon Steel, Cast Iron, High Alloy Steel, High Tensile Strength Alloy, Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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--20925-1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMPORT-GENERIC","offers":[{"title":"Default Title","offer_id":51718756466994,"sku":"BDNA--20925-1","price":36.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/288b5a78d69304ef73363b14e98f85b7.jpg?v=1788555394","url":"https:\/\/voomisupply.com\/products\/import-bdna-20925-1-mechanics-drill-bit-29-64-inch-hss","provider":"Voomi Supply","version":"1.0","type":"link"}