{"product_id":"osg-62539-jobber-drill-bit-3-9-mm-tin-hss","title":"Osg 62539 Jobber Drill Bit 3.9 Mm Tin Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 62539 is a jobber-length twist drill bit designed for high-performance drilling in metalworking and machining applications. Built from vanadium high speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction compared to uncoated HSS tooling. The 3.9 mm diameter and 130-degree split point with S-thinned web geometry allow for self-centering entry and reduced thrust force, making it well suited for precision hole work in production environments. With an overall length of 75 mm and a 43 mm flute length, this bit fits standard drill chucks and CNC setups. Machinists, tool-and-die technicians, and fabricators are the primary users.\u003c\/p\u003e\n\u003cp\u003eThe OSG 62539 is rated for drilling in steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpiece materials. It performs in blind hole, cross hole, through-hole, and self-centering drilling operations, covering a wide range of common shop tasks. The straight-cylindrical shank with a 4.00 mm shank diameter seats securely in standard keyless and keyed chucks. This bit is part of OSG Series 1600, positioned as a high-performance general-purpose jobber drill for repetitive production use or precision one-off work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eVanadium high speed steel construction with TiN coating for improved wear resistance and surface hardness\u003c\/li\u003e\n  \u003cli\u003e130-degree drill point angle with S-thinned web for self-centering entry and reduced thrust\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, regular spiral flute for efficient chip evacuation in common work materials\u003c\/li\u003e\n  \u003cli\u003eRated for steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate\u003c\/li\u003e\n  \u003cli\u003eSuitable for blind hole, cross hole, drilling, and self-centering tool applications\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration adds rigidity and reduces deflection in deep hole work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpiece materials. Compatible with standard straight-cylindrical chuck systems. Part of the OSG Series 1600 jobber drill line, sized within the 3.00 to 4.00 mm drill diameter range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or tool operators familiar with drill press, lathe, or CNC machining setups. Secure the straight-cylindrical shank firmly in the chuck before operation and verify runout is within acceptable tolerance for the application. No coolant-through capability is present on this bit; apply cutting fluid externally when drilling stainless steel or other work-hardening materials to manage heat buildup. Inspect the cutting edges and TiN coating before each use and remove the bit from service if chipping or coating loss is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 3.9 mm (0.1535 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 75.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 43.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 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, Regular\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: S-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1600\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 62539\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739219067186,"sku":"62539","price":42.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7e423ce07c9d4a94e93058857fc46990_8789b815-eb1e-44d3-8802-bade81d7db8e.jpg?v=1788811577","url":"https:\/\/voomisupply.com\/products\/osg-62539-jobber-drill-bit-3-9-mm-tin-hss","provider":"Voomi Supply","version":"1.0","type":"link"}