{"product_id":"hertel-44839223-roughing-end-mill-11-16-in-4-flute-cobalt","title":"Hertel 44839223 Roughing End Mill 11\/16 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 44839223 is a single-end cobalt roughing end mill designed for aggressive material removal in ferrous and high-temperature alloy applications. Built from M42 cobalt high-speed steel, it delivers heat and wear resistance beyond standard HSS tooling. The mill measures 11\/16 inches (0.6875 inches) in diameter with a 5\/8-inch shank, a 1-5\/8-inch length of cut, and a 3-3\/4-inch overall length. Four right-hand flutes with a coarse pitch enable rapid chip evacuation and reduce cutting forces during roughing passes. The bright, uncoated finish keeps the tool ready for use straight out of the box. This is a centercutting tool, allowing plunge entry as well as peripheral cutting.\u003c\/p\u003e\n\u003cp\u003eThis end mill suits CNC machining centers, knee mills, and manual milling machines used in job shops, maintenance facilities, and production environments. It is suited for roughing passes on steel, stainless, and harder alloy materials where tool longevity under heat is a priority. The coarse pitch geometry is optimized for high material removal rates rather than fine finishing. A licensed machinist or trained mill operator typically installs and runs this tooling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt HSS construction for superior heat and wear resistance over standard M2 tooling\u003c\/li\u003e\n  \u003cli\u003e4 right-hand flutes with coarse pitch for aggressive chip clearance and reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry allows both plunge and peripheral milling operations\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish with no coating buildup at cutting edges\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting and flute direction for standard spindle rotation\u003c\/li\u003e\n  \u003cli\u003eShank diameter tolerance of -0.0001 to -0.0005 inches ensures consistent toolholder fit\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 standard 5\/8-inch bore end mill holders and collet chucks used on vertical and horizontal milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or machine operator. Power down and lock out the spindle before seating or removing any end mill from the toolholder. Verify the shank is fully seated and the set screw or collet is torqued to the toolholder specification before running. Inspect the cutting edges for chips or damage before each use, and never exceed the recommended speeds and feeds for the workpiece material and tool diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter (Fractional)\u003c\/strong\u003e: 11\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter (Decimal)\u003c\/strong\u003e: 0.6875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inches (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-5\/8 inches (1.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-3\/4 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\u003ePitch\u003c\/strong\u003e: Coarse\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\u003eCentercutting\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\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.00394 to -0.00197 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: -0.0001 to -0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.9 x 0.94 x 0.94 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01874 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: 44839223\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51755596448050,"sku":"44839223","price":93.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7a69a7be595cc925e53e039ca6715514.jpg?v=1788956575","url":"https:\/\/voomisupply.com\/products\/hertel-44839223-roughing-end-mill-11-16-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}