{"product_id":"hertel-74130725-size-20-cobalt-screw-machine-drill-bit","title":"Hertel 74130725 Size 20 Cobalt Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 74130725 is a cobalt screw machine length drill bit designed for high-speed drilling in tough materials including stainless steel, hardened alloys, and abrasion-resistant metals. Built to wire gauge Size 20, it has a decimal diameter of 0.1610 inches and an overall length of 2.125 inches with a flute length of 1.0625 inches. The 135-degree split point reduces walking and allows the bit to self-center on contact without a pilot hole. The web-thinned, parallel-web construction lowers thrust requirements and extends tool life in production drilling environments. Licensed machinists, maintenance technicians, and metal fabricators typically reach for this bit in shop and field applications.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for production and general-purpose drilling in metalworking operations where shorter-than-jobber-length tools provide added rigidity and reduced deflection. The screw machine length body fits standard drill chucks and is well suited to drill presses, lathes, CNC mills, and hand-held power drills operating on metal workpieces. It is a practical choice for repetitive hole-making in close-tolerance work where a stable, rigid bit is required. The right-hand cutting direction and regular spiral flute geometry handle the majority of through-hole and blind-hole drilling scenarios encountered in light manufacturing and maintenance-repair work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction for increased heat resistance and durability in hard metal drilling\u003c\/li\u003e\n  \u003cli\u003e135-degree split point self-centers on contact and reduces walking without a center punch\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web lowers cutting thrust and extends tool life\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body provides greater rigidity and reduced deflection versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eRight-hand, regular spiral flute geometry for efficient chip evacuation in through and blind holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use drill bit for applications requiring a wire gauge Size 20 (0.1610 inch) screw machine length drill in standard straight-shank drill chucks across drill presses, lathes, CNC machines, and hand-held power tools.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or qualified technician should secure the shank fully in the drill chuck before operation and verify chuck runout is within acceptable tolerance for close-work drilling. Ensure the workpiece is firmly clamped or fixtured before beginning a cut. Use appropriate cutting fluid or coolant for the base material when extended drilling cycles are anticipated, as cobalt bits still generate heat in continuous-duty use. Inspect the split point for chipping before each use and replace the bit if edge damage is visible.\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: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1610 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: 2.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.0625 inches\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\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\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\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\u003eWeight\u003c\/strong\u003e: 0.12 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: 74130725\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51743987532082,"sku":"74130725","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/99e7151a775ec3987309634541ef47cd.jpg?v=1788852464","url":"https:\/\/voomisupply.com\/products\/hertel-74130725-size-20-cobalt-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}