{"product_id":"hertel-87144523-roughing-end-mill-1-1-4-in-6-flute-cobalt","title":"Hertel 87144523 Roughing End Mill 1-1\/4 in 6 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 87144523 is a single-end roughing end mill engineered for aggressive material removal in ferrous and high-temp alloy machining. Built from M42 cobalt high-speed steel and finished with a TiCN coating, it delivers extended tool life in demanding cutting environments. The 1.25-inch diameter, 6-flute coarse-pitch design breaks chips efficiently and reduces chatter during heavy cuts. With a 3-inch length of cut and 5.5-inch overall length, this end mill suits deep-pocket and side-milling operations on standard vertical and horizontal machining centers. Machinists and toolroom technicians working in production or maintenance environments are the primary users.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for roughing passes on steel, stainless, cast iron, and other hard materials where a standard HSS tool would wear prematurely. The coarse pitch geometry and right-hand cutting and flute direction make it a reliable choice for CNC milling operations requiring consistent chip evacuation and stable tool engagement. The center-cutting capability allows plunge entry without a pre-drilled pilot hole, adding flexibility during setup. Its regular-length classification makes it compatible with standard end mill holders and collet chucks commonly found in production shops.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction for superior heat and wear resistance versus standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiCN coating extends surface hardness and reduces friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003e6-flute coarse-pitch geometry optimized for aggressive roughing and efficient chip breaking\u003c\/li\u003e\n\u003cli\u003eCenter-cutting design permits direct plunge entry\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute direction for standard spindle operation\u003c\/li\u003e\n\u003cli\u003e1.25-inch shank diameter matches the cutter diameter for rigid, low-runout tool holding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit roughing end mill for standard 1-1\/4 inch end mill holders, collet chucks, and Weldon-style holders used in vertical and horizontal CNC and manual milling machines.\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 powered down and the machine is in a safe state before changing tooling. Secure the shank fully within the holder to the manufacturer-recommended gauge line depth and verify runout with a dial indicator before cutting. Follow the machine tool builder and shop safety guidelines for speeds, feeds, and coolant application when setting up a new tool.\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\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\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: 5.5 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\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\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.58 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: 87144523\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51738456195378,"sku":"87144523","price":241.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/faefffa70630fcc8354394823e242c35.jpg?v=1788799732","url":"https:\/\/voomisupply.com\/products\/hertel-87144523-roughing-end-mill-1-1-4-in-6-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}