{"product_id":"osg-8690740-solid-carbide-screw-machine-drill-bit","title":"Osg 8690740 Solid Carbide Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8690740 is a solid carbide screw machine length (stub) drill bit designed for high-performance drilling in demanding production environments. It features a 0.2913 inch (7.40 mm) diameter, a 140-degree split point, and a two-flute spiral configuration for efficient chip evacuation. The EgiAs coating provides enhanced surface hardness and lubricity, extending tool life in abrasive and hard materials. X-thinned web geometry reduces thrust force at the cutting tip. Coolant-through capability supports high-speed, deep-hole drilling in ferrous and non-ferrous metals. This bit is part of OSG Series 6500 and is intended for use by machinists, tool-and-die technicians, and CNC operators in industrial production settings.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for screw machine operations, CNC machining centers, and drill press applications where stub-length rigidity is required to minimize deflection. Its straight-cylindrical shank accepts standard drill chucks and collet holders. The 0.2913 inch diameter falls within the 0.2500 to 0.3000 inch range of the Series 6500 product family, making it a direct selection for applications requiring precise 7.40 mm diameter holes. It is commonly used when drilling steel alloys, stainless steel, cast iron, and similar materials where a solid carbide substrate and through-coolant delivery are required to maintain dimensional accuracy and tool life at elevated cutting speeds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide substrate for rigidity and wear resistance in hard materials\u003c\/li\u003e\n\u003cli\u003eEgiAs coating for reduced friction and extended tool life\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports high-speed drilling and chip flushing\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces thrust and improves self-centering\u003c\/li\u003e\n\u003cli\u003eX-thinned web geometry lowers cutting forces at entry\u003c\/li\u003e\n\u003cli\u003eStub (screw machine) length provides increased rigidity and reduced deflection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style production drill bit within OSG Series 6500, covering the 0.2500 to 0.3000 inch (6.50 to 8.00 mm) diameter range. Fits standard drill chucks and collet systems accepting an 8.00 mm straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or CNC technicians. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck or collet holder. Verify chuck or collet size matches the 8.00 mm shank diameter before clamping. When using coolant-through capability, confirm the machine tool spindle and coolant delivery system are rated for through-tool coolant before operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.2913 inches (7.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 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: EgiAs\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: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 37.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 94.00 mm (approximately 3.70 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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: X-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub (Screw Machine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.8 inches L x 0.55 inches W x 0.45 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 8690740\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731961970994,"sku":"8690740","price":187.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8b46ad03ea5170bff9de3e121ee42436_2d07c63a-9be1-4125-a7d3-7aa93fad05e7.jpg?v=1788737290","url":"https:\/\/voomisupply.com\/products\/osg-8690740-solid-carbide-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}