{"product_id":"hertel-91192260-roughing-end-mill-1-in-3-flute-cobalt","title":"Hertel 91192260 Roughing End Mill 1 in 3 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 91192260 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel with a bright, uncoated finish, it handles tough ferrous and stainless materials where standard HSS tools lose edge life. The 1-inch cutting diameter pairs with a coarse-pitch, 3-flute geometry that evacuates chips efficiently and reduces chatter during heavy roughing passes. With a 1.5-inch length of cut and 3.75-inch overall length, it fits standard milling machine and CNC machining center setups. Center-cutting capability allows direct plunging without a pre-drilled pilot hole, adding versatility on the shop floor.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for production and job-shop environments where roughing cuts need to come in fast before a finishing pass. The 0.75-inch shank diameter seats in standard R8, CAT, BT, or directly clamped tool holders commonly found on vertical mills and machining centers. Right-hand cut and right-hand flute direction are the standard configuration for conventional and climb milling on most setups. Machinists and tool-and-die professionals are the primary users for this type of cutter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt steel construction for extended tool life in tough and stainless alloys\u003c\/li\u003e\n\u003cli\u003eCoarse-pitch, 3-flute design promotes chip clearance and reduces heat buildup in deep cuts\u003c\/li\u003e\n\u003cli\u003eCenter-cutting geometry allows direct plunge entry without pre-drilling\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish compatible with a wide range of cutting fluids and lubricants\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand helix for standard milling machine setups\u003c\/li\u003e\n\u003cli\u003e0.75-inch shank fits common tool holder bores without reduction collets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit roughing end mill for standard milling machines and CNC machining centers accepting a 0.75-inch shank diameter tool holder.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the tool holder and torque the retention mechanism per the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a cut, and confirm cutting fluid flow is directed at the cutting zone to manage heat during roughing passes.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1 inch\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\u003eLength of Cut\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.75 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\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\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: 91192260\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51753010594098,"sku":"91192260","price":168.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/40e680239b1d6de0fd4bbbdf28480dd7.jpg?v=1788932106","url":"https:\/\/voomisupply.com\/products\/hertel-91192260-roughing-end-mill-1-in-3-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}