{"product_id":"hertel-66691999-drill-bit-size-23-cobalt-tin-135-deg","title":"Hertel 66691999 Drill Bit Size 23 Cobalt Tin 135 Deg","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 66691999 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal and hard materials. Built from heavy-duty cobalt with a titanium nitride (TiN) coating, it delivers extended tool life and heat resistance in demanding production environments. The 135-degree split point starts on contact without a center punch, reducing walking and improving hole accuracy. At 2-1\/16 inches overall length with a 1-inch flute length and a 0.154-inch diameter, this stub-length bit offers added rigidity for drilling in tight clearances. It is sized to wire gauge No. 23 and suited for use in drill presses, CNC machines, and hand drills used by machinists and maintenance technicians.\u003c\/p\u003e\u003cp\u003eThis bit is a fit for production machining, metal fabrication, and maintenance repair operations where a short, rigid drill is preferred over jobber length. The screw machine length profile reduces deflection when drilling stainless steel, alloy steel, cast iron, and other hard metals. The straight-cylindrical shank accepts standard three-jaw chucks. Web-thinned geometry with a parallel web configuration reduces thrust load at the cutting edge, making it well suited for high-cycle production use in manual and automated drilling setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool material with TiN coating for extended wear resistance and heat tolerance\u003c\/li\u003e\n\u003cli\u003e135-degree split point starts on contact, no center punch required\u003c\/li\u003e\n\u003cli\u003eWeb-thinned parallel web reduces thrust and improves chip evacuation\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length adds rigidity and reduces deflection in deep setups\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute, regular spiral type for standard metal cutting applications\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard three-jaw chucks without an adapter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard screw machine length drill bit for use in drill presses, CNC drilling centers, and hand-held power drills equipped with a three-jaw chuck accepting a 0.154-inch straight shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed with the machine fully powered off and at a complete stop. Secure the straight shank firmly in a three-jaw chuck, verifying concentricity before beginning a drilling cycle. A licensed machinist or qualified maintenance technician should follow applicable shop safety standards and machine manufacturer guidelines when changing tooling. Do not exceed the recommended RPM range for the workpiece material and bit diameter.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 23\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1540 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1540 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\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\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.1500 to 0.2000 inches\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: 66691999\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51740297593138,"sku":"66691999","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c0f1ff1b7f631f7c207217fe17405a7c.jpg?v=1788824091","url":"https:\/\/voomisupply.com\/products\/hertel-66691999-drill-bit-size-23-cobalt-tin-135-deg","provider":"Voomi Supply","version":"1.0","type":"link"}