{"product_id":"osg-8608409-screw-machine-drill-bit-0-161-in-xpm","title":"Osg 8608409 Screw Machine Drill Bit 0.161 in Xpm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8608409 is a screw machine length drill bit designed for high-performance drilling in steel, alloy steel, cast iron, and nickel alloy workpieces. It carries a 0.161 inch (No. 20 wire gauge) diameter, a 130-degree point angle, and an XPM high-performance coating that extends tool life under demanding cutting conditions. The straight-cylindrical shank seats securely in standard drill chucks and machine spindles. With a 2-flute regular spiral configuration and R-thinned, tapered web, this bit is built for machinists, tool-and-die workers, and maintenance technicians who need reliable, repeatable hole quality in hard ferrous materials.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for screw machine operations, CNC drilling centers, and bench drill press applications where compact tool length and rigidity matter. Its 3xD flute-to-diameter ratio and screw machine length profile reduce deflection and improve chip evacuation in short, through-hole drilling tasks. It is a practical choice for production environments running steel and cast iron parts where standard jobber-length bits introduce unwanted runout or chatter. The 6.00 mm shank diameter provides a secure, concentric grip in collet or Jacobs-style chuck setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.161 inch (No. 20 wire gauge, 4.09 mm) cutting diameter with tolerance of +0 to -0.018 mm\u003c\/li\u003e\n\u003cli\u003e130-degree standard point angle for reduced thrust and improved self-centering on ferrous materials\u003c\/li\u003e\n\u003cli\u003eXPM high-performance coating for extended wear resistance in steel and alloy steel\u003c\/li\u003e\n\u003cli\u003eR-thinned, tapered web reduces cutting resistance and improves chip flow\u003c\/li\u003e\n\u003cli\u003eScrew machine length (3xD flute ratio) for greater rigidity and reduced deflection\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, 2-flute spiral design compatible with standard machine tooling setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use in steel, alloy steel, cast iron, and nickel alloy workpieces. Part of OSG Series 1900, covering the 0.1500 to 0.2000 inch decimal inch drill bit size range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or maintenance technicians familiar with cutting tool setup. Secure the shank fully in a properly sized collet or drill chuck before operation, and verify spindle runout is within acceptable tolerance for the application. Ensure the machine is at a full stop before changing or inspecting the bit. Follow applicable shop safety standards and machine manufacturer guidelines for feed rate and spindle speed selection based on workpiece material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.161 inches (4.09 mm, No. 20 wire gauge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: XPM (High Performance)\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, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 22.00 mm (0.866 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 66.00 mm (2.598 inches)\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: 6.00 mm (0.236 inches)\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\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0 to -0.018 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Alloy Steel, Cast Iron, Nickel Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.027 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: 8608409\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754384392498,"sku":"8608409","price":75.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/44fe543ee989932cb2aa2b072a128d9c.jpg?v=1788944916","url":"https:\/\/voomisupply.com\/products\/osg-8608409-screw-machine-drill-bit-0-161-in-xpm","provider":"Voomi Supply","version":"1.0","type":"link"}