{"product_id":"hertel-84511997-roughing-end-mill-1-4-in-3-flute-cobalt","title":"Hertel 84511997 Roughing End Mill 1\/4 in 3 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 84511997 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel, this tool handles harder workpiece materials that standard HSS tooling cannot manage efficiently. The 1\/4 inch diameter cutter features 3 flutes in a right-hand cutting and right-hand flute configuration, with a 5\/8 inch length of cut and a 2-7\/16 inch overall length. The bright, uncoated finish leaves the cobalt material fully exposed for applications where coating is unnecessary or undesirable. This end mill is sized for light-duty work, detail passes, and slotting in machine shop and toolroom environments.\u003c\/p\u003e\n\u003cp\u003eThis roughing end mill is suited for use in vertical machining centers, knee mills, and CNC milling machines where high-feed roughing passes are required. The 3\/8 inch shank diameter fits standard ER collets and end mill holders commonly found in production and toolroom setups. The roughing geometry is intended for roughing and semi-finishing passes on steel, stainless, and other ferrous materials. It is not center-cutting, so it is not designed for plunge operations. Machinists, tool grinders, and CNC operators in manufacturing and job shop environments are the typical users.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for improved hardness and heat resistance over standard M2 HSS\u003c\/li\u003e\n  \u003cli\u003e3-flute roughing geometry for efficient chip evacuation and reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute configuration for standard milling setups\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish suitable for applications not requiring surface treatment\u003c\/li\u003e\n  \u003cli\u003eSingle-end design with 3\/8 inch shank for secure clamping in collet or end mill holders\u003c\/li\u003e\n  \u003cli\u003eNot center-cutting — intended for peripheral and slot milling, not plunge entry\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 use in standard 3\/8 inch end mill holders and ER collet chucks on vertical mills and CNC machining centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or CNC operators following standard tooling changeout procedures. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the 3\/8 inch shank fully into the collet or end mill holder and torque the retention mechanism per the holder manufacturer's specifications. Confirm runout with a dial indicator before beginning a cut to avoid premature tool wear.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter (Fractional)\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter (Decimal)\u003c\/strong\u003e: 0.25 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\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2-7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (Fractional)\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (Decimal)\u003c\/strong\u003e: 0.3750 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\u003eCenter Cutting\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\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.504 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: 84511997\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51729180229938,"sku":"84511997","price":31.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6cb7d45fde0ad57d911ee81e8fcfa71f.jpg?v=1788701497","url":"https:\/\/voomisupply.com\/products\/hertel-84511997-roughing-end-mill-1-4-in-3-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}