{"product_id":"hertel-91192153-roughing-end-mill-1-2-in-3-flute-cobalt","title":"Hertel 91192153 Roughing End Mill 1\/2 in 3 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 91192153 is a single-end roughing end mill designed for aggressive material removal in milling operations. Constructed from M42 cobalt high-speed steel with a bright, uncoated finish, it delivers heat resistance and toughness suited to interrupted cuts and tough ferrous materials. The 1\/2 inch diameter cutter features 3 flutes with a coarse pitch geometry, producing a chip-breaking action that reduces cutting forces and prevents chip packing during heavy roughing passes. With a 1.25 inch length of cut and a 3.25 inch overall length, this tool fits standard milling setups without extended reach.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in manual and CNC milling applications where rapid stock removal is the priority before a finishing pass. It is well suited to job shops, maintenance machining, and production environments working with steel, cast iron, and similar materials. The center-cutting design allows plunge entry, giving machinists flexibility in toolpath programming. Right-hand cutting and right-hand flute direction are consistent with standard spindle configurations on vertical and horizontal mills.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for elevated heat resistance and edge retention in tough ferrous materials\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 capability allows direct plunge entry without a pre-drilled hole\u003c\/li\u003e\n  \u003cli\u003e1\/2 inch shank diameter matches 1\/2 inch collets, end mill holders, and Weldon-style holders\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suitable for use with or without cutting fluid\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute direction for standard milling spindle compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit roughing end mill for standard 1\/2 inch end mill holders, collet chucks, and Weldon-style tool holders used in vertical and horizontal milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or tooling technician following standard tool change procedures. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the holder and secure to the manufacturer torque specification for the holder type in use. Verify runout with a dial indicator before beginning a cut, particularly on roughing operations where side loads are high.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42\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: 1.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.2500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 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\u003eEnd Type\u003c\/strong\u003e: Single End\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\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: 91192153\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51727387296050,"sku":"91192153","price":72.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9bc149f0942e5f78b6aeff784f450102.jpg?v=1788677152","url":"https:\/\/voomisupply.com\/products\/hertel-91192153-roughing-end-mill-1-2-in-3-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}