{"product_id":"hertel-91192757-roughing-end-mill-1-1-4-in-6-flute-cobalt","title":"Hertel 91192757 Roughing End Mill 1-1\/4 in 6 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 91192757 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 titanium nitride (TiN) coating, it delivers heat resistance and extended tool life in demanding cutting environments. The cutter measures 1.25 inches in diameter with a 0.75-inch shank diameter, a 2-inch length of cut, and a 4.5-inch overall length. Six right-hand flutes with a coarse pitch geometry break chips efficiently and reduce cutting forces during heavy roughing passes. This tool is installed and used by machinists and tool-and-die professionals working on manual or CNC milling equipment.\u003c\/p\u003e\u003cp\u003eThis roughing end mill is suited for roughing passes on ferrous and non-ferrous metals where high stock removal rates are the priority. The coarse pitch flute design produces smaller chips and reduces chatter, making it a practical choice for interrupted cuts and slotting operations in production or job-shop environments. It is a single-end, non-centercutting tool, meaning it is intended for peripheral and side milling rather than plunge cutting. The TiN coating adds lubricity and wear resistance, extending intervals between tool changes in moderate to high-volume runs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for elevated heat and wear resistance\u003c\/li\u003e\n\u003cli\u003eTiN coating reduces friction and extends tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e6-flute coarse pitch geometry for aggressive chip evacuation during roughing\u003c\/li\u003e\n\u003cli\u003e1.25-inch mill diameter with 0.75-inch shank for secure collet or end mill holder retention\u003c\/li\u003e\n\u003cli\u003e2-inch length of cut and 4.5-inch overall length suits standard milling setups\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting and right-hand flute direction for conventional spindle use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use roughing end mill compatible with standard end mill holders, collet chucks, and milling machine spindles accepting a 0.75-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine powered off and the spindle fully stopped. Secure the shank in a properly sized end mill holder or collet chuck and verify runout before beginning a cut. This is a non-centercutting tool — do not use for direct plunge entry into solid material. Follow machine manufacturer guidelines and applicable shop safety standards for feeds, speeds, and workholding when setting up roughing operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1.25 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\u003eLength of Cut\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\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: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Coarse\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\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: 91192757\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51736854987058,"sku":"91192757","price":177.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8aaac371cb144783bba6be0ef10b7106.jpg?v=1788781132","url":"https:\/\/voomisupply.com\/products\/hertel-91192757-roughing-end-mill-1-1-4-in-6-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}