{"product_id":"hertel-74147588-cobalt-drill-bit-3-4-in-1-2-in-shank","title":"Hertel 74147588 Cobalt Drill Bit 3\/4 in 1\/2 in Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 74147588 is a reduced shank cobalt drill bit designed for drilling into tough, high tensile strength materials where standard high-speed steel bits fall short. Built from cobalt tool steel with a 118-degree standard point angle, this bit delivers the heat resistance and edge retention needed for demanding production and maintenance drilling. The 3\/4-inch cutting diameter pairs with a 1\/2-inch straight-cylindrical shank, allowing use in standard drill chucks and spindles that would not otherwise accept a full 3\/4-inch shank. An oxide straw finish provides additional surface hardness and corrosion resistance. This bit is suited for machinists, maintenance technicians, and metalworking professionals working on the shop floor or in the field.\u003c\/p\u003e\u003cp\u003eThis drill bit is intended for use on tough, high tensile strength ferrous and non-ferrous workpiece materials including alloy steels, stainless steel, and similar hard metals. The reduced shank design makes it compatible with 1\/2-inch capacity drill presses, magnetic drills, and hand-held drilling equipment. Right-hand cutting direction is standard for conventional CW-rotating spindles. The 3-inch flute length and 6-inch overall length suit through-hole and deeper drilling applications in plate, structural, and fabricated components.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool steel construction for superior heat and wear resistance in hard metals\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle for self-centering starts on flat and curved surfaces\u003c\/li\u003e\n\u003cli\u003eReduced 1\/2-inch shank diameter allows use in standard 1\/2-inch chuck equipment\u003c\/li\u003e\n\u003cli\u003eOxide straw finish improves surface hardness and reduces friction during cutting\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute with regular helix for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eNo coolant required per manufacturer specification, suitable for dry drilling operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a reduced shank metalworking drill bit for use in 1\/2-inch capacity drill chucks on drill presses, magnetic base drills, and handheld power drills. Rated for tough high tensile strength materials as specified by the manufacturer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and serviced by machinists or maintenance mechanics familiar with drilling equipment. Secure the 1\/2-inch shank firmly in the chuck and verify runout before starting. Always use appropriate work-holding to prevent workpiece movement during drilling. Follow your equipment manufacturer's recommended RPM range for the workpiece material and bit diameter before beginning any operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 3\/4 inches (0.7500 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\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: Oxide Straw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Tough High Tensile Strength Materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Required\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 74147588\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51739416658226,"sku":"74147588","price":78.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5d7527222eb6e335a77ad2076aebcc0b.jpg?v=1788814369","url":"https:\/\/voomisupply.com\/products\/hertel-74147588-cobalt-drill-bit-3-4-in-1-2-in-shank","provider":"Voomi Supply","version":"1.0","type":"link"}