{"product_id":"osg-61589-screw-machine-drill-bit-8-90mm-tin-hss","title":"Osg 61589 Screw Machine Drill Bit 8.90mm Tin Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 61589 is a screw machine length drill bit designed for high-performance drilling in steel, stainless steel, aluminum, and other non-ferrous materials. Built from vanadium high speed steel and finished with a TiN (titanium nitride) coating, this bit delivers extended tool life and reduced friction at the cutting edge. The 120-degree, 4-facet point geometry with web thinning improves centering accuracy and reduces the thrust required to start and advance the cut. At 90 millimeters overall length with a 40-millimeter flute length, it fits standard screw machine and production drilling setups used by machinists and toolroom technicians.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for production machining, repair shop, and general metalworking applications where a shorter, more rigid drill profile is preferred over jobber length. The straight cylindrical shank accommodates standard drill chucks and collet holders. The regular spiral flute with tapered web configuration promotes chip evacuation in through-hole and blind-hole drilling on ferrous and non-ferrous workpieces. It is part of the OSG Series 1100 high performance line and carries a 5xD flute-to-diameter ratio appropriate for moderate-depth holes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiN coating reduces friction and extends cutting life compared to uncoated HSS\u003c\/li\u003e\n\u003cli\u003e120-degree 4-facet point with web thinning for accurate self-starting and reduced thrust\u003c\/li\u003e\n\u003cli\u003eVanadium high speed steel construction for toughness in ferrous and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length provides increased rigidity versus jobber length bits\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute with tapered web for consistent chip evacuation\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting with straight cylindrical shank for broad chuck and collet compatibility\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 screw machine, CNC drilling, and production metalworking operations on steel, stainless steel, aluminum, and non-ferrous workpieces. No specific machine model compatibility was stated in the product data.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom technicians familiar with drill press, lathe, or CNC machining center operation. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the straight shank firmly in the chuck or collet to the manufacturer-specified engagement depth before operation. Always wear appropriate eye protection and follow applicable shop safety procedures when drilling metal.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 8.90 mm (0.3504 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 90.00 mm (3.5433 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 40.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 10.00 mm (0.0394 inches decimal)\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: 4 Facet\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\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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Vanadium 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\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0 to -0.022 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Aluminum, Non-Ferrous\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: 1100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: 61589\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731753599282,"sku":"61589","price":97.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2882ef1fe598206ec666eb082076d472_3fdbfb70-1db7-4468-b197-f718e05004b9.jpg?v=1788734564","url":"https:\/\/voomisupply.com\/products\/osg-61589-screw-machine-drill-bit-8-90mm-tin-hss","provider":"Voomi Supply","version":"1.0","type":"link"}