{"product_id":"osg-8690850-solid-carbide-screw-machine-drill-bit-8-50mm","title":"Osg 8690850 Solid Carbide Screw Machine Drill Bit 8.50mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 8690850 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding production and machining environments. The bit features a 140-degree split point with R-thinned web geometry, reducing thrust load and improving chip evacuation. At 8.50 mm (0.3346 inches) in diameter, the 8690850 runs with a right-hand spiral flute and includes coolant-through capability, making it well suited for high-speed machining centers where heat management is critical. It belongs to OSG Series 6500 and carries a 3xD flute-to-diameter ratio with a coated finish for extended tool life.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is intended for use in ferrous and hard-material applications including steel, alloy steel, cast iron, titanium, and titanium alloys. The screw machine length designation means a shorter overall body compared to jobber-length bits, providing greater rigidity and reduced runout in CNC machining centers, gang drills, and turret lathes. It is typically installed and operated by machinists and tooling specialists in production shops, job shops, and precision manufacturing facilities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and thermal resistance in hard-material applications\u003c\/li\u003e\n  \u003cli\u003e140-degree drill point angle with R-thinned web to reduce entry thrust and improve centering\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design channels coolant directly to the cutting edge for heat control and chip clearing\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends tool life in high-cycle production environments\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body provides increased rigidity and minimal deflection\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank at 9.00 mm for standard collet and chuck compatibility\u003c\/li\u003e\n  \u003cli\u003eRegular spiral, 2-flute configuration optimized for chip evacuation in deep-hole drilling at 3xD depth\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling steel, alloy steel, cast iron, titanium, and titanium alloys. Fits standard collets and drill chucks accepting a 9.00 mm straight-cylindrical shank. Part of the OSG Series 6500 high-performance screw machine drill line, covering the 8.00 mm to 9.50 mm diameter range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by qualified machinists with the machine fully powered down and spindle locked. Verify collet or chuck bore matches the 9.00 mm shank diameter before seating the bit. Coolant-through systems should be confirmed active and at appropriate pressure before initiating cuts to prevent premature tool wear or breakage. Solid carbide tooling is brittle and should not be subjected to side loads or used in hand-held drilling applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 8.50 mm (0.3346 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\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 43.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 101.00 mm (3.98 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 9.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: R-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\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 Material\u003c\/strong\u003e: Steel, Alloy Steel, Cast Iron, Titanium, Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 4.15 inches L x 0.65 inches W x 0.50 inches H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.155 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: 8690850\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730438160690,"sku":"8690850","price":216.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8b46ad03ea5170bff9de3e121ee42436_b3e622be-7e18-4018-83d7-c31af29b59a9.jpg?v=1788717455","url":"https:\/\/voomisupply.com\/products\/osg-8690850-solid-carbide-screw-machine-drill-bit-8-50mm","provider":"Voomi Supply","version":"1.0","type":"link"}