{"product_id":"hertel-62889027-roughing-end-mill-3-8-in-4-flute-cobalt","title":"Hertel 62889027 Roughing End Mill 3\/8 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 62889027 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel and finished with a TiAlN coating, it handles elevated cutting temperatures and extends tool life in demanding operations. The 3\/8-inch diameter cutter features 4 spiral flutes with a coarse pitch geometry, which breaks chips efficiently and reduces cutting forces during heavy roughing passes. At 1.625 inches length of cut and 3.1875 inches overall length, it fits standard milling chucks and collets. Center-cutting capability allows plunge entry directly into the workpiece. Machinists and tool-and-die professionals install this tool in manual mills and CNC machining centers.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for roughing operations on ferrous and harder non-ferrous materials where high heat generation is a concern. The TiAlN coating performs well in dry or minimal-lubrication cutting environments, making it a practical choice for production shops running without flood coolant. Right-hand cut and right-hand flute direction are standard for conventional vertical milling setups. It is a single-end tool, meaning it is replaced when the cutting end is worn rather than reversed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt HSS construction for heat resistance and toughness in heavy roughing cuts\u003c\/li\u003e\n\u003cli\u003eTiAlN coating extends tool life in dry and high-temperature cutting conditions\u003c\/li\u003e\n\u003cli\u003eCoarse pitch, 4-flute spiral geometry promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCenter-cutting design allows direct plunge entry without pre-drilling\u003c\/li\u003e\n\u003cli\u003e3\/8-inch shank matches 3\/8-inch collets and standard end mill holders\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute direction for conventional milling compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit tooling option for standard 3\/8-inch end mill holders, collet chucks, and milling machine spindles accepting 3\/8-inch shank tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists familiar with milling machine setup and tooling procedures. Power down and lock out the spindle before seating or removing the tool from the holder. Ensure the shank is fully seated in the collet or end mill holder and torqued to the tool holder manufacturer specification. Inspect the collet and holder for wear or runout before use, as excessive runout will accelerate edge wear on a roughing geometry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.375 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\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: 1.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\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\u003eFlute Type\u003c\/strong\u003e: Spiral\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: 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 62889027\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51731862454578,"sku":"62889027","price":81.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1c4c1ab8aa0f6c54c8c5276797a8a4ca_74fb5a7c-10e8-48e5-918c-bc4cab8d5e79.jpg?v=1788735713","url":"https:\/\/voomisupply.com\/products\/hertel-62889027-roughing-end-mill-3-8-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}