{"product_id":"hertel-74130832-cobalt-screw-machine-drill-bit-size-31","title":"Hertel 74130832 Cobalt Screw Machine Drill Bit Size 31","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 74130832 is a cobalt screw machine length drill bit designed for high-speed drilling in tough materials including hardened steels, stainless steel, and heat-resistant alloys. Built to wire gauge size 31 with a decimal diameter of 0.1200 inches, this bit features a 135-degree split point that reduces walking on entry and lowers the thrust required to start the cut. The overall length is 1-7\/8 inches, and the flute length measures 7\/8 inch, making this a compact stub-length tool suited for close-quarters drilling in production and machine shop environments. Two regular spiral flutes evacuate chips efficiently during operation.\u003c\/p\u003e\n\u003cp\u003eThis bit is commonly used in machining, fabrication, and maintenance applications where precise small-diameter holes are required in ferrous metals. The screw machine length profile provides added rigidity compared to jobber-length bits, reducing deflection during short-hole drilling. It is well suited for drill press, CNC, and turret lathe applications. Licensed machinists, tool and die makers, and industrial maintenance technicians typically spec this type of bit for production runs involving hardened or work-hardening materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction provides heat resistance for drilling hardened and stainless steels\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust and prevents bit walking on entry\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web design improves chip flow and reduces cutting torque\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length adds rigidity and minimizes deflection in short-hole applications\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting, regular spiral flute pattern for conventional drilling operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-application screw machine drill bit for use in standard drill chucks accepting a straight cylindrical shank in small-diameter wire gauge sizes.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of this bit requires insertion into a compatible drill chuck and tightening with the appropriate chuck key before operation. Always ensure the spindle is fully stopped before changing tooling. Use appropriate cutting fluid or coolant when drilling hardened or stainless materials to extend tool life, noting that this bit does not support coolant-through delivery. Follow applicable shop safety standards and machine guarding requirements during use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 31\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1200 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\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 Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 7\/8 inch\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: Regular 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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Straw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HSCO135\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.1000 to 0.1500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.068 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241635\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 74130832\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51742228021554,"sku":"74130832","price":44.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fcd6e58af786d0fcbdd674f8c76f126d.jpg?v=1788836024","url":"https:\/\/voomisupply.com\/products\/hertel-74130832-cobalt-screw-machine-drill-bit-size-31","provider":"Voomi Supply","version":"1.0","type":"link"}