{"product_id":"osg-8670770-carbide-screw-machine-drill-bit-7-7mm","title":"Osg 8670770 Carbide Screw Machine Drill Bit 7.7mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8670770 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding production environments. Built to Series 6300 standards, it features a 140-degree split point geometry and an EgiAs coating that reduces friction and extends tool life in ferrous and non-ferrous materials. The stub-length body measures 3.11 inches overall, making it well-suited for rigid setups where minimizing deflection is critical. Right-hand cut with a straight-cylindrical shank, this bit is sized at 7.7 mm (0.3031 inches) and is installed by machinists and toolroom technicians working on CNC drilling operations, manual drill presses, and multi-spindle equipment.\u003c\/p\u003e\u003cp\u003eThis drill bit is intended for screw machine and stub-length drilling applications where a shorter flute-to-shank ratio improves rigidity and accuracy. The 41 mm flute length supports chip evacuation in shallow-to-moderate depth holes. The EgiAs coating performs across a wide range of workpiece materials. Typical use cases include precision hole-making in production machining, metal fabrication shops, and toolroom environments where consistent diameter control at 7.7 mm is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for superior hardness and wear resistance\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces thrust and improves self-centering\u003c\/li\u003e\n\u003cli\u003eEgiAs coating extends tool life and reduces heat buildup at the cutting edge\u003c\/li\u003e\n\u003cli\u003eR-thinned web reduces cutting resistance and improves chip flow\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard drill chucks and collet holders sized for 8.00 mm (0.3150 inch) shanks\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length body increases rigidity and minimizes runout\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a stub-length carbide drill for use in CNC machining centers, drill presses, and screw machines accepting a straight-cylindrical shank. Fits within the OSG Series 6300 drill bit family for the 6.50 mm to 8.00 mm diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists and toolroom technicians. Secure the shank fully in a drill chuck or collet holder before operation, and verify runout with an indicator before beginning a production run. Solid carbide tooling is brittle — avoid side loading, interrupted cuts without appropriate feed adjustments, and impact or dropping on hard surfaces. Always follow machine manufacturer feed and speed guidelines when setting up a new tool.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 7.7 mm (0.3031 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 79.00 mm (3.11 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 41.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8.00 mm (0.3150 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: R-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: EgiAs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub (Screw Machine Length)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.095 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 8670770\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51747466281266,"sku":"8670770","price":134.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/92ac2d2de290359753c194556239fb2a_c3fcca56-146c-4337-a897-368fe909f272.jpg?v=1788880623","url":"https:\/\/voomisupply.com\/products\/osg-8670770-carbide-screw-machine-drill-bit-7-7mm","provider":"Voomi Supply","version":"1.0","type":"link"}