{"product_id":"value-collection-20870-t-letter-t-mechanics-drill-bit-hss","title":"Value Collection -20870-T Letter T Mechanics Drill Bit Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION -20870-T is a Letter T mechanics drill bit designed for general-purpose metal drilling in professional and industrial shop environments. Built from high-speed steel with an oxide finish, it features a 135-degree split point that reduces walking on entry and requires no center punch on most surfaces. The Weldon flat shank with three flats provides positive drive engagement and prevents slipping in compatible chucks and tool holders. At 0.3580 inches in decimal diameter, this bit is sized for accurate Letter T hole production across a range of workpiece materials.\u003c\/p\u003e\n\u003cp\u003eThis mechanics-length drill bit is suited for machining and fabrication work where a shorter, more rigid profile is preferred over jobber-length bits. It is designed for use on carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel workpieces. The spiral flute geometry with a parallel web and web-thinned tip supports chip evacuation during through-hole and blind-hole operations in both hand-fed and machine-fed drilling applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLetter T size — 0.3580 inches decimal equivalent for precise hole sizing\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust and eliminates center-punch requirement on most metals\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction provides hardness and heat resistance for metal drilling\u003c\/li\u003e\n  \u003cli\u003eWeldon flat shank with 3 flats prevents rotation in compatible tool holders\u003c\/li\u003e\n  \u003cli\u003eOxide coating improves lubricity and provides basic corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel web construction supports efficient chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose mechanics-length drill bit compatible with drill presses, milling machines, and hand drills equipped with chucks or tool holders that accept a Weldon flat shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this bit is typically performed by machinists, tool-and-die workers, or experienced fabricators. Ensure the spindle is fully stopped and the machine is de-energized before changing bits. Seat the Weldon flat shank fully into the tool holder and tighten set screws against all flats before operation. Use appropriate cutting fluid for stainless steel and high alloy steel workpieces to manage heat buildup and extend tool life.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.3580 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\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\u003eDrill Length Type\u003c\/strong\u003e: Mechanics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-11\/16 inches\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\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: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: -20870-T\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51689838117170,"sku":"-20870-T","price":31.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/79ebb2fe3e84cde47e01bc3b8af5d1b2.jpg?v=1788264451","url":"https:\/\/voomisupply.com\/products\/value-collection-20870-t-letter-t-mechanics-drill-bit-hss","provider":"Voomi Supply","version":"1.0","type":"link"}