{"product_id":"osg-61587-screw-machine-drill-bit-8-70mm-tin-hss","title":"Osg 61587 Screw Machine Drill Bit 8.70mm Tin Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 61587 is a screw machine length drill bit designed for high-performance drilling in metalworking and machining applications. Built from high-speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction during cutting operations. The bit measures 8.70 mm in diameter with a 120-degree faceted point, a flute length of 40 mm, and an overall length of 90 mm (3.54 inches). The web-thinned, tapered web configuration reduces thrust and improves chip evacuation. This bit is installed by machinists and toolroom professionals working on production drilling operations requiring consistent hole quality.\u003c\/p\u003e\u003cp\u003eThe OSG 61587 is suited for drilling steel, stainless steel, aluminum, aluminum alloys, and aluminum silicate workpieces. Its screw machine length profile — shorter than jobber length — provides added rigidity and reduced deflection in drill press, turret lathe, and CNC machining center setups. The 2-flute spiral design handles a wide range of metal cutting scenarios where controlled chip flow and repeatable tolerances are required. It is a strong fit for high-cycle production environments where tool performance and dimensional consistency matter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e8.70 mm diameter with a diameter tolerance of +0 to -0.022 mm for consistent hole sizing\u003c\/li\u003e\n\u003cli\u003eTiN coating reduces surface friction and extends cutting edge life\u003c\/li\u003e\n\u003cli\u003e120-degree faceted point with web thinning for reduced entry thrust\u003c\/li\u003e\n\u003cli\u003eTapered web configuration promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks and collet systems\u003c\/li\u003e\n\u003cli\u003eScrew machine length body increases rigidity versus jobber-length alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use drill bit for machining operations involving steel, stainless steel, aluminum, and aluminum alloy workpieces requiring an 8.70 mm hole diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of this drill bit should be performed by a qualified machinist or toolroom technician. Secure the straight-cylindrical shank firmly in a properly sized drill chuck or collet before operation, and verify runout before beginning a production run. Always power down and de-energize the machine spindle before changing tooling. Follow the machine manufacturer's recommended speeds and feeds for the workpiece material being drilled.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 8.70 mm (0.3425 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 90 mm (3.54 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 120 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Faceted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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: 10.00 mm (0.0394 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\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: No\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\u003eSeries\u003c\/strong\u003e: 1100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Aluminum, Aluminum Alloy, Aluminum Silicate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.105 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: 61587\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51735034036530,"sku":"61587","price":97.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2882ef1fe598206ec666eb082076d472_ca49398a-4fb0-4acc-a0a5-87f4708bb112.jpg?v=1788769492","url":"https:\/\/voomisupply.com\/products\/osg-61587-screw-machine-drill-bit-8-70mm-tin-hss","provider":"Voomi Supply","version":"1.0","type":"link"}