{"product_id":"hertel-91192161-roughing-end-mill-1-2-in-3-flute-cobalt-m42","title":"Hertel 91192161 Roughing End Mill 1\/2 in 3 Flute Cobalt M42","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 91192161 is a single-end cobalt roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel, this end mill handles tough ferrous metals and stainless steels that standard HSS tooling struggles with. It features a 1\/2 inch diameter, three flutes, and a coarse pitch geometry that breaks chips efficiently and reduces cutting forces during heavy roughing passes. The bright, uncoated finish suits applications where lubricity coatings are unnecessary or undesirable. Right-hand cut and right-hand flute direction are standard. Center-cutting capability allows plunge entry without a pre-drilled pilot hole.\u003c\/p\u003e\n\u003cp\u003eThis roughing end mill is intended for use in vertical machining centers, knee mills, and manual milling machines found in job shops, maintenance departments, and production environments. It is well suited for roughing slots, pockets, and profiles in steel, alloy steel, and similar materials prior to a finishing pass. The 2 inch length of cut and 4 inch overall length give adequate reach for moderate-depth pockets without sacrificing rigidity. Machinists and tool-and-die professionals working with M42 cobalt tooling will find this end mill a direct fit for standard ER and R8 collet systems using a 1\/2 inch bore.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt HSS construction for elevated heat resistance and edge retention in tough alloys\u003c\/li\u003e\n  \u003cli\u003eCoarse pitch roughing geometry breaks chips and reduces cutting forces during heavy passes\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting design permits direct plunge entry without a starter hole\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish for use across a broad range of cutting fluids and dry applications\u003c\/li\u003e\n  \u003cli\u003e1\/2 inch shank diameter matches standard collet and end mill holder inventory\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute direction compatible with conventional milling setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit roughing end mill for milling applications requiring a 1\/2 inch diameter, 3-flute, single-end cobalt tool with a 1\/2 inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or tool-and-die technicians. The machine spindle must be fully stopped and the tool changer or quill locked before changing end mills. Verify collet or end mill holder bore matches the 1\/2 inch shank before clamping. Inspect the collet and holder for wear or runout before use, as excessive runout accelerates edge wear on cobalt tooling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42 HSS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Cutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.504 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: 91192161\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51739266613554,"sku":"91192161","price":81.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/787e9b70054d0bab99c754f8b75647fa.jpg?v=1788812436","url":"https:\/\/voomisupply.com\/products\/hertel-91192161-roughing-end-mill-1-2-in-3-flute-cobalt-m42","provider":"Voomi Supply","version":"1.0","type":"link"}