{"product_id":"import-20870-u-letter-u-mechanics-drill-bit-hss","title":"Import -20870-U Letter U Mechanics Drill Bit Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IMPORT -20870-U is a Letter U mechanics drill bit designed for general-purpose metal drilling in professional shop and field applications. Built from high-speed steel with an oxide finish, it features a 135-degree split point that self-centers on contact and reduces the need for a center punch. The Weldon flat shank with three flats provides positive drive and prevents slipping in compatible chucks. At 4.25 inches overall length with a 2.6875-inch flute, this bit is sized for standard mechanics drilling tasks where control and chip evacuation matter.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for right-hand cutting in a range of ferrous materials including carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. The mechanics length format keeps the bit rigid and maneuverable in tight spaces common to machine shop work, maintenance environments, and production drilling setups. The spiral flute type with a parallel web configuration and web-thinned point supports consistent chip clearing during through-hole and blind-hole operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLetter U size — 0.3680 inch decimal equivalent\u003c\/li\u003e\n  \u003cli\u003e135-degree split point for self-centering entry without center punch\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with oxide coating for wear resistance\u003c\/li\u003e\n  \u003cli\u003eWeldon flat shank with three flats for positive drive in compatible chucks\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel web configuration for reduced thrust and improved chip flow\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, regular spiral flute — general-purpose performance across common ferrous materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with drill chucks and tool holders accepting a Weldon flat shank. Suitable for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and service by machinists, tool-and-die technicians, or qualified maintenance mechanics. Secure the Weldon shank fully in a compatible set-screw chuck or holder before operation and verify all set screws are torqued to the holder manufacturer specification. Power down and lock out the machine before changing bits. Do not run this bit in reverse or use it on non-ferrous materials without confirming suitability for the workpiece.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: Letter U\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDecimal Equivalent\u003c\/strong\u003e: 0.3680 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\u003eDrill Length Type\u003c\/strong\u003e: Mechanics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.6875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: 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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\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\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: -20870-U\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IMPORT-GENERIC","offers":[{"title":"Default Title","offer_id":51721423356210,"sku":"-20870-U","price":32.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5cae19cf8071c7a68a82118b730bd7c2.jpg?v=1788577293","url":"https:\/\/voomisupply.com\/products\/import-20870-u-letter-u-mechanics-drill-bit-hss","provider":"Voomi Supply","version":"1.0","type":"link"}