{"product_id":"sumitomo-u101141-screw-machine-drill-bit-0-368in-carbide","title":"Sumitomo U101141 Screw Machine Drill Bit 0.368in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SUMITOMO U101141 is a screw machine length drill bit designed for precision hole-making in ferrous and hard materials. Built from solid carbide with a coated finish, this bit handles cast iron and steel with consistent accuracy. The 135-degree split point reduces walking and lowers thrust at entry, making it well-suited for production drilling environments. At 0.368 inches in diameter, it corresponds to Letter Size U and carries an h8 diameter tolerance for tight fitment requirements. The straight-cylindrical shank seats cleanly in standard drill chucks and collets. This is a two-flute configuration with a tapered web and a flute-to-diameter ratio of 2xD, part of the MDW-GS series.\u003c\/p\u003e\n\u003cp\u003eThe U101141 is used in machining and fabrication shops where controlled, repeatable drilling into cast iron and steel is required. Screw machine length bits are shorter than jobber-length bits, which improves rigidity and reduces deflection in close-tolerance work. The bit fits manual drill presses, CNC machining centers, and screw machine setups. A maximum drilling depth of 0.9439 inches makes it appropriate for through-holes and shallow blind holes in production runs. No coolant-through capability is present, so external or flood coolant should be applied where heat management is needed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction provides hardness and wear resistance in steel and cast iron applications\u003c\/li\u003e\n  \u003cli\u003e135-degree drill point angle reduces entry thrust and minimizes bit walking on flat surfaces\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends tool life and reduces friction during cutting\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard chucks and collets without modification\u003c\/li\u003e\n  \u003cli\u003eTapered web design improves chip clearance and cutting efficiency\u003c\/li\u003e\n  \u003cli\u003eh8 diameter tolerance supports precise hole sizing in tight-spec applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a screw machine length replacement drill bit for use in cast iron and steel drilling applications. Compatible with standard drill chucks, collets, and CNC toolholders accepting straight-cylindrical shanks in the 0.35 to 0.40 inch diameter range, per the MDW-GS series specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or tooling technicians familiar with carbide cutting tools. Ensure the spindle and workpiece are fully secured before engaging the bit, as carbide is brittle and sensitive to lateral shock loads. No coolant-through capability is present on this bit, so external coolant or cutting fluid should be applied to manage heat during operation. Inspect the cutting edges before each use, as chipped or damaged carbide should never be run in a machine.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.368 inches (Letter Size U)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.4961 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.4252 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.8504 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.9439 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.0762 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 2xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: h8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: MDW-GS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: SUMITOMO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: U101141\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51744843858226,"sku":"U101141","price":173.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/061813ad98f2851f645afb01b06bd69e.jpg?v=1788861414","url":"https:\/\/voomisupply.com\/products\/sumitomo-u101141-screw-machine-drill-bit-0-368in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}