{"product_id":"osg-8595138-screw-machine-drill-bit-1-38-mm-hss-140pt","title":"Osg 8595138 Screw Machine Drill Bit 1.38 Mm Hss 140pt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 8595138 is a screw machine length drill bit designed for high-performance drilling in metalworking and machining applications. Built from high speed steel with a coated finish, this bit measures 1.38 mm in diameter with a 140-degree faceted point for fast penetration and accurate starting. The overall length is 41 mm (approximately 1.614 inches) with a 3 mm straight-cylindrical shank. The web-thinned, tapered web configuration reduces cutting resistance and improves chip evacuation. This bit is a practical choice for machinists, tool-and-die technicians, and precision metalworkers requiring consistent, repeatable results in short-length drilling operations.\u003c\/p\u003e\u003cp\u003eThe OSG 8595138 is suited for drilling in steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate. Its screw machine length body keeps the bit rigid and reduces deflection, making it well-matched for drill press, CNC, and benchtop machining center applications where hole position accuracy and finish quality matter. The 5xD flute-to-diameter ratio supports effective chip clearance during deeper passes relative to bit diameter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1.38 mm cutting diameter with a tolerance of +0 to -0.014 mm for precision fitment\u003c\/li\u003e\n\u003cli\u003e140-degree faceted point reduces walking and improves entry accuracy\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with coated finish for extended tool life\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web lowers thrust requirements and aids chip flow\u003c\/li\u003e\n\u003cli\u003eScrew machine length body provides added rigidity over jobber-length alternatives\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute with 2 flutes for balanced cutting in ferrous and non-ferrous materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard-service drill bit for use in screw machine, CNC drilling, and benchtop press applications requiring a 1.38 mm diameter, straight-cylindrical shank bit in the OSG Series 1100 line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or tool technicians familiar with rotary cutting tool safety. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits. Power down the machine and lock out all energy sources before changing or inspecting the bit. Do not exceed the recommended feed and speed parameters 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: 1.38 mm (0.0543 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Faceted\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\/Finish\u003c\/strong\u003e: Coated\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 9 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 41 mm (1.614 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: 3 mm (0.1181 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0 to -0.014 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Aluminum, Aluminum Alloy, Aluminum Silicate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.005 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: 8595138\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51748717887794,"sku":"8595138","price":41.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5f440fffce408d31caf3e3e5dbeb0ba9.jpg?v=1788897222","url":"https:\/\/voomisupply.com\/products\/osg-8595138-screw-machine-drill-bit-1-38-mm-hss-140pt","provider":"Voomi Supply","version":"1.0","type":"link"}