{"product_id":"hertel-06822340-roughing-end-mill-7-8-in-5-flute-cobalt-m42","title":"Hertel 06822340 Roughing End Mill 7\/8 in 5 Flute Cobalt M42","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 06822340 is a single-end roughing end mill designed for aggressive material removal in milling operations. Manufactured from M42 cobalt high-speed steel with a bright, uncoated finish, this tool delivers durability and heat resistance during roughing cuts. The 7\/8-inch (0.875 inch) cutting diameter pairs with a 3\/4-inch shank diameter and five flutes configured in a right-hand cutting, right-hand flute direction. With a 1-7\/8-inch length of cut and 4-1\/8-inch overall length, this is a standard regular-length configuration suited to a wide range of roughing applications in machine shop and production environments.\u003c\/p\u003e\u003cp\u003eThis end mill is used in CNC milling machines, knee mills, and manual machining setups where rapid stock removal is the priority before a finishing pass. The cobalt M42 construction makes it well suited for cutting ferrous metals, stainless steels, and other tough alloys that generate high cutting temperatures. The 5-flute geometry improves chip load distribution compared to 4-flute designs, increasing feed rates without sacrificing tool life. This is a non-centercutting tool, meaning it is not suited for plunge cutting and must be engaged from the side or via a pre-drilled entry point.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for heat resistance in tough alloy cutting\u003c\/li\u003e\n\u003cli\u003e5-flute design increases chip load efficiency and supports higher feed rates\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute direction for standard CNC and manual mill setups\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for use with cutting fluids in most ferrous materials\u003c\/li\u003e\n\u003cli\u003eNon-centercutting, single-end configuration for dedicated roughing operations\u003c\/li\u003e\n\u003cli\u003eRegular length profile fits standard tool holders without extended-reach concerns\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style roughing end mill for use in standard 3\/4-inch end mill holders, collet chucks, and shrink-fit tooling systems compatible with a 3\/4-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following the machine tool manufacturer guidelines. Ensure the milling machine spindle is fully stopped and locked out before changing tooling. Secure the 3\/4-inch shank to the minimum recommended engagement depth in the tool holder to prevent pullout under high feed loads. Because this is a non-centercutting tool, do not use it for direct plunge entry into solid material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter (Fractional)\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter (Decimal)\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\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\u003eLength of Cut\u003c\/strong\u003e: 1-7\/8 inches (1.875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-1\/8 inches (4.125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter (Fractional)\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter (Decimal)\u003c\/strong\u003e: 0.75 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\u003eCentercutting\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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\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: 06822340\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51732434256178,"sku":"06822340","price":98.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/50122ea61ee9dff556e891a614cad861.jpg?v=1788742740","url":"https:\/\/voomisupply.com\/products\/hertel-06822340-roughing-end-mill-7-8-in-5-flute-cobalt-m42","provider":"Voomi Supply","version":"1.0","type":"link"}