{"product_id":"osg-3330990-screw-machine-drill-bit-9-90mm-carbide","title":"Osg 3330990 Screw Machine Drill Bit 9.90mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 3330990 is a screw machine length drill bit engineered for high-performance drilling in demanding metalworking applications. Built from solid carbide and coated with OSG's proprietary EgiAs multi-layer coating, this bit delivers extended tool life and consistent performance in tough materials. It features a 9.90 mm diameter, a 180-degree flat bottom point geometry, and a right-hand cutting direction with a regular spiral flute. The overall length is 85.00 mm (3.3465 inches) with a flute length of 42.00 mm. The web-thinned, tapered web configuration reduces thrust force and improves chip evacuation. Machining shops, tool-and-die professionals, and CNC operators are the primary users of this series.\u003c\/p\u003e\n\u003cp\u003eThe OSG 3330990 is suited for drilling steel, cast iron, and hardened materials in production environments where screw machine length geometry is required. The shorter overall length relative to jobber-length bits provides added rigidity, making it well-suited for high-feed-rate operations on CNC machining centers, turret lathes, and screw machines. The straight cylindrical shank with an 8.00 mm diameter (0.3150 inches) fits standard drill chucks and collet holders without modification. This bit does not support coolant-through operation and is intended for external coolant or flood-coolant setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in ferrous and hardened workpiece materials\u003c\/li\u003e\n  \u003cli\u003eEgiAs proprietary multi-layer coating reduces friction and extends cutting life\u003c\/li\u003e\n  \u003cli\u003e180-degree flat bottom point eliminates the center tip — ideal for flat-bottomed hole applications\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web lowers entry thrust and improves chip flow\u003c\/li\u003e\n  \u003cli\u003eScrew machine length design (85.00 mm OAL) provides enhanced stability compared to jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of +0 to -0.022 mm supports consistent hole sizing across production runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on steel, cast iron, and hardened materials. Fits standard drill chucks and collet systems accepting an 8.00 mm straight cylindrical shank. Part of the OSG Series 5700 high-performance carbide drill line, covering the 0.3500 to 0.4000 decimal inch diameter range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed with the machine in a full stop and lockout-tagout procedures followed per OSHA 29 CFR 1910.147. Ensure the shank is fully seated and the collet or chuck is torqued to the toolholder manufacturer's specification before beginning a cut. External or flood coolant should be directed at the cutting zone, as this bit does not support internal coolant-through delivery. Inspect the cutting edge and coating for wear or chipping before each use to maintain hole-diameter tolerance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 9.90 mm (0.3898 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 85.00 mm (3.3465 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 42.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8.00 mm (0.3150 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 180 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Flat Bottom\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\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: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: EgiAs Multi-layer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered Web-Thinned\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: 2xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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 Material\u003c\/strong\u003e: Steel, Cast Iron, Hardened Materials\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5700\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.14 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: 3330990\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51750919078194,"sku":"3330990","price":242.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6610b5b7e64749449347a1ca53a6449c_88b1b77a-064d-4473-b8ed-e2345f51542f.jpg?v=1788920605","url":"https:\/\/voomisupply.com\/products\/osg-3330990-screw-machine-drill-bit-9-90mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}