{"product_id":"hertel-66691783-cobalt-screw-machine-drill-bit-size-2","title":"Hertel 66691783 Cobalt Screw Machine Drill Bit Size 2","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 66691783 is a cobalt screw machine length drill bit designed for heavy-duty drilling in tough materials including hardened steel, stainless steel, and high-alloy metals. Wire size 2 corresponds to a decimal diameter of 0.2210 inches. The bit features a 135-degree split point for fast, self-centering starts without a center punch, and a titanium nitride (TiN) coating that extends tool life by reducing friction and heat buildup. The straight-cylindrical shank seats securely in standard drill chucks. This is a right-hand cut bit suited for machinists, toolmakers, and maintenance technicians working with ferrous and difficult-to-machine materials.\u003c\/p\u003e\u003cp\u003eScrew machine length drill bits are shorter than jobber-length bits, making them the preferred choice when rigidity and reduced deflection are critical. The shortened overall length of 2-7\/16 inches limits runout in tight spaces and provides better control in drill presses, CNC machining centers, and hand-held power drills used in production or maintenance environments. The 1-5\/16-inch flute length handles typical stock thicknesses encountered in metal fabrication, mechanical assembly, and repair operations. Web-thinned construction with a parallel web reduces thrust requirements and improves chip evacuation during drilling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction provides heat and wear resistance for drilling hard and abrasive metals\u003c\/li\u003e\n\u003cli\u003eTiN coating reduces friction and extends cutting tool life in repetitive production use\u003c\/li\u003e\n\u003cli\u003e135-degree split point enables self-centering starts and faster penetration\u003c\/li\u003e\n\u003cli\u003eScrew machine length (2-7\/16 inches OAL) delivers added rigidity and reduced deflection\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, parallel web design lowers feed pressure and improves chip removal\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, straight-cylindrical shank compatible with standard three-jaw chucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling option for applications requiring wire size 2 (0.2210 inches) diameter drilling in heavy-duty metal cutting operations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall and remove drill bits only with the drill press or power tool fully powered off and the chuck key removed from the chuck. Secure the shank fully within the chuck jaws to minimize runout. Use appropriate cutting fluid or coolant for the workpiece material when drilling ferrous metals to manage heat and extend bit life. Inspect the cutting edges and coating condition before each use and replace bits showing chipping, dulling, or coating wear.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2210 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\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\u003eShank Diameter\u003c\/strong\u003e: 0.2210 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-7\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-5\/16 inches\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\u003eWeb Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241635\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66691783\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51743454069042,"sku":"66691783","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/00be6423a72bb3ab297c4c7b38db2460.jpg?v=1788847196","url":"https:\/\/voomisupply.com\/products\/hertel-66691783-cobalt-screw-machine-drill-bit-size-2","provider":"Voomi Supply","version":"1.0","type":"link"}