{"product_id":"osg-8690650-screw-machine-drill-bit-0-2559-in-solid-carbide","title":"Osg 8690650 Screw Machine Drill Bit 0.2559 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8690650 is a screw machine length drill bit engineered for high-performance drilling in demanding industrial and metalworking applications. Built from solid carbide with a coated finish, it runs a right-hand cut with a regular spiral flute configuration. The 140-degree split point and R-thinned web reduce thrust and improve centering without a pilot hole. At 6.50 mm (0.2559 inches) in diameter, this bit ships ready for production-line or tool-room use. Coolant-through capability supports extended tool life in interrupted cuts and deep-hole operations. It is installed and used by machinists and tool-room professionals working with CNC machining centers, drill presses, and manual lathes.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for through-coolant drilling operations in steel, alloy steel, cast iron, titanium, and titanium alloy workpieces. The screw machine length (3xD flute-to-diameter ratio) provides rigidity in short-reach setups and is a common choice for production drilling where tool deflection must be minimized. The straight-cylindrical shank at 7.00 mm diameter seats cleanly in standard collets and drill chucks. OSG Series 6500 bits are positioned in the high-performance tier, making them appropriate for shops running tight tolerances and high cycle counts.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eCoated finish extends tool life and reduces built-up edge in steel and titanium\u003c\/li\u003e\n\u003cli\u003e140-degree point angle with R-thinned, tapered web for reduced entry thrust and self-centering\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports chip evacuation and thermal control in deep or interrupted cuts\u003c\/li\u003e\n\u003cli\u003eScrew machine length (3xD ratio) provides a short, stiff profile that resists deflection\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flute with 2 flutes for balanced chip load\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in steel, alloy steel, cast iron, titanium, and titanium alloy workpieces. The 7.00 mm straight-cylindrical shank is compatible with standard collet chucks and drill chuck holders sized for that shank diameter. Part of OSG Series 6500.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine fully de-energized and locked out per applicable safety procedures. Seat the straight-cylindrical shank fully and evenly in the collet or chuck before torquing the holder. Verify coolant-through lines are clear and flow is confirmed before running the first cycle. Inspect the cutting edges and point geometry before use; solid carbide tips are brittle and should not be dropped or subjected to impact.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.2559 inches (6.50 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 88.00 mm (3.46 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 33.00 mm (1.30 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7.00 mm (0.276 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\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 Bit Diameter Tolerance\u003c\/strong\u003e: +0 to -0.022 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Alloy Steel, Cast Iron, Titanium, Titanium Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: High Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.55 x 0.55 x 0.45 inches\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: 8690650\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51737193480498,"sku":"8690650","price":151.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8b46ad03ea5170bff9de3e121ee42436_859fec3d-a226-4693-884e-50743c2fe361.jpg?v=1788785450","url":"https:\/\/voomisupply.com\/products\/osg-8690650-screw-machine-drill-bit-0-2559-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}