{"product_id":"hertel-74130923-cobalt-screw-machine-drill-bit-size-40","title":"Hertel 74130923 Cobalt Screw Machine Drill Bit Size 40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 74130923 is a cobalt screw machine length drill bit designed for high-speed drilling in hard and abrasive materials. Built to Size 40 (0.0980 inches), it features a 135-degree split point that reduces walking on entry and lowers thrust requirements compared to conventional 118-degree points. The overall length is 1-13\/16 inches with a 13\/16-inch flute length, making it well suited for tight-clearance drilling operations on turret lathes, CNC machining centers, and screw machines. The straight cylindrical shank fits standard drill chucks without adapters. Right-hand cutting with a regular spiral flute pattern. Intended for use by machinists and tool-room technicians working with stainless steel, high-temperature alloys, and other hard ferrous metals.\u003c\/p\u003e\n\u003cp\u003eThis bit is sized for screw machine and short-hole drilling applications where a stub-length tool provides rigidity and reduced deflection. The cobalt construction handles work-hardening materials that would prematurely dull standard high-speed steel tooling. Typical install environments include production machine shops, maintenance shops, and contract manufacturing settings where wire-gauge drill sizes are routinely needed for tapping prep, clearance holes, and precision bore work in the 0.0000 to 0.1000 inch decimal range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction for heat resistance in hard and work-hardening materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces entry walking and cutting thrust\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web for improved chip evacuation and reduced torque\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length provides extra rigidity and reduced deflection\u003c\/li\u003e\n  \u003cli\u003eRight-hand, regular spiral flute pattern for standard drilling applications\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard drill chucks without additional tooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style screw machine length drill bit suitable for use in standard drill chucks, turret lathes, drill presses, and CNC machining centers accepting straight-shank tooling in the wire-gauge size range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the shank fully in the chuck and verify concentricity before starting the cut. Use appropriate cutting fluid for cobalt tooling when drilling stainless or high-temperature alloys to extend tool life. Ensure the workpiece is firmly clamped before drilling to prevent movement that can chip the split point. Inspect the cutting edges for wear regularly; cobalt bits can be resharpened on a drill grinding fixture designed for split-point geometry.\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: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0980 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: Straw\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-13\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 13\/16 inches\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\u003eSeries\u003c\/strong\u003e: HSCO135\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.0000 to 0.1000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241635\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 74130923\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51742013423922,"sku":"74130923","price":42.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8821ef6cd4c5b2fc61978618206b7fad.jpg?v=1788834918","url":"https:\/\/voomisupply.com\/products\/hertel-74130923-cobalt-screw-machine-drill-bit-size-40","provider":"Voomi Supply","version":"1.0","type":"link"}