{"product_id":"hertel-75987735-roughing-end-mill-3-4-in-3-flute-cobalt","title":"Hertel 75987735 Roughing End Mill 3\/4 in 3 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 75987735 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel, it carries a TiCN coating that extends tool life in ferrous and abrasive materials. The 3\/4-inch diameter cutter runs 3 flutes in a coarse pitch configuration, which clears chips efficiently and reduces heat buildup during heavy cuts. The tool is center-cutting, meaning it can be plunged directly into a workpiece. With a 3-inch length of cut and 5.25-inch overall length, it suits deep-pocket and profile milling on standard vertical mills and CNC machining centers.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for roughing passes on steel, stainless steel, and other tough alloys where high material removal rate matters more than finish quality. The coarse pitch flute geometry breaks chips into small segments, reducing the risk of chip re-cutting and spindle overload. It is a go-to tool for machinists running roughing programs before a finishing pass with a standard end mill. The right-hand cut and right-hand flute direction are compatible with conventional milling machine setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction for heat and wear resistance in tough alloys\u003c\/li\u003e\n\u003cli\u003eTiCN coating adds surface hardness and reduces friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003eCoarse pitch, 3-flute design promotes aggressive chip evacuation\u003c\/li\u003e\n\u003cli\u003eCenter-cutting geometry allows direct plunge entry into the workpiece\u003c\/li\u003e\n\u003cli\u003e3\/4-inch shank matches standard collets and end mill holders\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand helix for conventional machine compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit roughing end mill for any milling machine or CNC machining center that accepts a 3\/4-inch shank, including standard ER collet chucks, Weldon-style end mill holders, and hydraulic tool holders sized for 3\/4-inch tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Secure the shank to the full recommended engagement depth in the tool holder and verify runout before cutting. Confirm spindle direction is set to right-hand rotation before starting the cut. Never exceed the tool manufacturer's recommended speed and feed parameters for the work material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.75 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)\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: TiCN\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: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches\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\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: 0.504 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: 75987735\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51730790514994,"sku":"75987735","price":133.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d25435c4ae2cdc5238e2914e43b8515e.jpg?v=1788722906","url":"https:\/\/voomisupply.com\/products\/hertel-75987735-roughing-end-mill-3-4-in-3-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}