{"product_id":"hertel-41120734-roughing-end-mill-1-2-in-4-flute-cobalt","title":"Hertel 41120734 Roughing End Mill 1\/2 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 41120734 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and finished with a TiCN coating, this tool handles tough ferrous and non-ferrous materials with a 0.5 inch cutting diameter and a 1.25 inch length of cut. The fine-pitch, 4-flute geometry produces a smoother chip load distribution compared to coarse-pitch roughs, making it well suited for controlled hogging passes on CNC machining centers and manual knee mills. Centercutting capability allows plunge entry without a pre-drilled pilot hole. Overall length is 3.25 inches and the shank diameter matches the cutter at 0.5 inch.\u003c\/p\u003e\u003cp\u003eThis end mill is intended for use in ferrous and non-ferrous metal cutting applications where rapid stock removal is required before a finishing pass. The TiCN coating extends tool life by reducing heat buildup and surface friction at the cutting edge. Right-hand cut and right-hand flute orientation follow standard milling convention. Regular length geometry fits directly into standard collet chucks, end mill holders, and Weldon-style toolholders without extended-reach adapters. Machinists, tool and die makers, and maintenance technicians performing prototype or production work will find this tool a direct drop-in for typical half-inch tooling setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt HSS construction for improved red hardness and wear resistance over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiCN coating reduces friction and extends cutting life in steel and stainless applications\u003c\/li\u003e\n\u003cli\u003eFine-pitch 4-flute design balances chip evacuation with surface finish on roughing passes\u003c\/li\u003e\n\u003cli\u003eCentercutting end geometry allows direct plunge milling without a pilot hole\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand spiral flute — standard milling orientation\u003c\/li\u003e\n\u003cli\u003eRegular length at 3.25 inches overall fits standard collet and end mill holders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling option for any setup requiring a 0.5 inch shank, single-end roughing end mill in a collet chuck, Weldon shank holder, or end mill adapter rated for half-inch tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is in a locked-out, de-energized state before changing tooling. Seat the shank to the minimum engagement depth recommended by the toolholder manufacturer — typically at least 1 inch of shank engagement. Inspect the collet or holder for runout before resuming cuts, as excessive runout accelerates flute wear on cobalt tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\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\u003eCoating\/Finish\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Fine\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: 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\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.16 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: 41120734\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51751020429618,"sku":"41120734","price":53.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2f6083bb0dbfd1f44a01679acb9709ce.jpg?v=1788921185","url":"https:\/\/voomisupply.com\/products\/hertel-41120734-roughing-end-mill-1-2-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}