{"product_id":"hertel-91192773-roughing-end-mill-1-1-4-in-6-flute-cobalt","title":"Hertel 91192773 Roughing End Mill 1-1\/4 in 6 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 91192773 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and coated with Titanium Nitride (TiN), it delivers extended tool life in demanding cutting environments. The coarse-pitch, 6-flute geometry breaks chips efficiently and reduces cutting forces on the workpiece. With a 1.25-inch mill diameter, 6-inch length of cut, and 8.5-inch overall length, this tool handles deep-cavity and heavy-roughing passes that standard end mills cannot sustain. It is a right-hand cut, right-hand flute tool and is not center-cutting.\u003c\/p\u003e\u003cp\u003eThis roughing end mill is suited for production machining, tool-and-die, and job-shop environments where fast stock removal from steel, stainless, and high-temperature alloys is required. The M42 cobalt substrate resists heat buildup better than standard M2 HSS, making it a practical choice for harder materials and interrupted cuts. Machinists and CNC operators working on vertical mills, horizontal mills, or manual knee mills will find it appropriate for rough-profiling and slotting where finish is secondary to removal rate.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt steel construction for increased red-hardness and wear resistance over standard HSS\u003c\/li\u003e\n\u003cli\u003eTitanium Nitride (TiN) coating reduces friction and extends tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e6-flute coarse-pitch geometry for high chip load and rapid material removal\u003c\/li\u003e\n\u003cli\u003e1.25-inch mill diameter with matching 1.25-inch straight shank for rigid toolholder fit\u003c\/li\u003e\n\u003cli\u003e6-inch length of cut supports deep-cavity roughing passes\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute — not center-cutting, designed for peripheral and slot roughing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for standard 1.25-inch shank roughing end mill holders used in production milling applications. Confirm toolholder bore diameter and collet size before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists following shop safety procedures. Ensure the machine spindle is fully powered down and locked out before mounting or removing the tool. Seat the shank fully into the toolholder and torque the retention hardware according to the toolholder manufacturer's specifications. Verify runout with a dial indicator before beginning a cut, as excessive runout accelerates flute wear on multi-flute tools.\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: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 8.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Coarse\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: 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\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: 91192773\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51730945540402,"sku":"91192773","price":320.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0a02a88d21d6941763503503aac96bff.jpg?v=1788725148","url":"https:\/\/voomisupply.com\/products\/hertel-91192773-roughing-end-mill-1-1-4-in-6-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}