{"product_id":"osg-8690690-screw-machine-drill-bit-6-90mm-carbide","title":"Osg 8690690 Screw Machine Drill Bit 6.90mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 8690690 is a screw machine length drill bit engineered for high-performance drilling in demanding metalworking applications. Built from solid carbide and finished with OSG's proprietary EgiAs multi-layer coating, this bit handles tough workpiece materials including steel, cast iron, high-temperature alloys, and hardened materials. It features a 140-degree point angle with R-thinned web geometry for improved centering and reduced thrust force. With a 6.90 mm diameter, an overall length of 88.00 mm, and a flute length of 35.00 mm, it is sized for stub-length rigidity where deflection and runout must be minimized. Coolant-through capability supports high-speed production environments.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for CNC machining centers, drill presses, and automated production equipment in industrial and job-shop settings. The screw machine length format provides added stiffness compared to jobber-length bits, making it the preferred choice when drilling into steel, cast iron, and hardened workpieces at close tolerances. The straight cylindrical shank with a 7.00 mm diameter seats cleanly in standard collet chucks and drill chucks. It is typically installed and operated by machinists and tool-and-die professionals working under close-tolerance manufacturing conditions.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for wear resistance in hard and abrasive workpiece materials\u003c\/li\u003e\n  \u003cli\u003eEgiAs proprietary multi-layer coating reduces heat buildup and extends tool life\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle with R-thinned web for accurate self-centering and lower entry thrust\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports high-feed-rate and deep-hole drilling operations\u003c\/li\u003e\n  \u003cli\u003eScrew machine length (3xD flute-to-diameter ratio) maximizes rigidity and minimizes deflection\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting, regular spiral flute, tapered web configuration for consistent chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard straight-shank collet chucks and drill chucks accepting a 7.00 mm shank diameter. Primary workpiece materials include steel, cast iron, high-temperature alloys, and hardened materials. Part of OSG Series 6500.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by qualified machinists familiar with carbide tooling. Ensure the machine spindle and chuck are powered down and locked out before loading or removing the bit. Solid carbide tooling is brittle and should not be subjected to side loads or impact during handling or setup. Verify coolant-through passages are clear and coolant flow is active before beginning cuts in hard or hardened materials.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 6.90 mm (0.2717 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 88.00 mm (3.4646 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 35.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7.00 mm (0.2756 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: EgiAs Multi-layer\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: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: R-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\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: 6500\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0 to -0.022 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Cast Iron, High-Temp Alloy, Hardened Materials\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 8690690\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754574545202,"sku":"8690690","price":160.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8b46ad03ea5170bff9de3e121ee42436_db29f16c-be4d-46fd-b728-1d7ac20b27bb.jpg?v=1788946750","url":"https:\/\/voomisupply.com\/products\/osg-8690690-screw-machine-drill-bit-6-90mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}