{"product_id":"widia-4140253-screw-machine-drill-bit-11-16-in-carbide","title":"Widia 4140253 Screw Machine Drill Bit 11\/16 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WIDIA 4140253 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding shop and field environments. Measuring 11\/16 inches (0.6875 inches) in diameter with a 140-degree thinned point, the bit cuts cleanly through steel, stainless steel, cast iron, non-ferrous metals, and superalloys including titanium. A TiAlN coating reduces heat buildup and extends tool life at elevated cutting speeds. At 4.8425 inches overall length with a 2.874-inch helical flute, this is a compact, stub-style bit suited for close-clearance applications and high-cycle production work. Coolant-through capability supports chip evacuation in deep or blind-hole operations. Licensed trades and machining professionals install and operate this tooling.\u003c\/p\u003e\n\u003cp\u003eThe 4140253 is built for general-purpose production drilling across a range of workpiece materials. Its screw machine (stub) length format provides added rigidity compared to jobber-length bits, making it well-suited for CNC machining centers, drill presses, and manual machine operations where runout control and hole accuracy are priorities. The right-hand cut, cylindrical shank at 0.7087 inches diameter fits standard toolholders and chucks. A maximum drilling depth of 2.0079 inches and a 3xD flute-to-diameter ratio position this bit for moderate-depth applications in production and maintenance environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating reduces friction and thermal load, extending tool life at higher surface speeds\u003c\/li\u003e\n  \u003cli\u003e140-degree thinned point for self-centering entry and reduced thrust force\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design aids chip evacuation and heat control in deep-hole drilling\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length increases rigidity and minimizes deflection versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eRegular spiral, 2-flute helical geometry promotes efficient chip flow across multiple material types\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose OEM-style drill bit compatible with steel, stainless steel, cast iron, non-ferrous metal, and superalloys and titanium workpieces. Fits standard drill chucks and toolholders accepting a 0.7087-inch cylindrical shank. Part of the WIDIA VDS401A series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and operated by machinists, toolroom technicians, and maintenance trades using CNC equipment, drill presses, or manual machines. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the cylindrical shank firmly in a properly sized chuck or collet to minimize runout. When using coolant-through capability, confirm the machine coolant system is compatible with the toolholder and that coolant pressure is set per the machine manufacturer's guidelines.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 11\/16 inches (0.6875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.8425 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.874 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.0079 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.7087 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.8898 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.1192 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Helical, Regular Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine Length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal, Superalloys and Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.0007 \/ 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: VDS401A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.705 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: WIDIA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4140253\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WIDIA","offers":[{"title":"Default Title","offer_id":67914099425586,"sku":"4140253","price":673.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0b8d7cfc16ad8ad331c0792132caaf85_402ae7ea-f087-4b25-97e1-d1cdaa6632a7.jpg?v=1791247307","url":"https:\/\/voomisupply.com\/products\/widia-4140253-screw-machine-drill-bit-11-16-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}