{"product_id":"hertel-91197525-roughing-end-mill-6mm-4-flute-cobalt","title":"Hertel 91197525 Roughing End Mill 6mm 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 91197525 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel, it delivers heat resistance and edge retention under demanding cutting conditions. The 6 mm diameter cutter features 4 flutes with a fine pitch and a bright, uncoated finish. It has a 13 mm length of cut and an overall length of 57 mm. The right-hand cutting direction and right-hand flute spiral are standard for conventional milling setups. This tool is suited for machinists and toolmakers working in job shops, maintenance facilities, and production environments.\u003c\/p\u003e\u003cp\u003eThe 91197525 is intended for roughing passes on ferrous and non-ferrous materials where fast stock removal is the priority. The fine pitch geometry produces smaller chips and reduces chatter on lighter cuts. The 6 mm shank diameter matches the cutter diameter, making it compatible with standard collet chucks, end mill holders, and shrink-fit tooling systems that accept 6 mm shanks. Centercutting capability allows for plunge entry, giving the operator flexibility in tool path selection without a separate drill operation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt HSS construction for elevated heat resistance and wear life\u003c\/li\u003e\n\u003cli\u003e4-flute fine pitch design supports efficient chip evacuation on roughing passes\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge entry\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for use with or without cutting fluid\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand helix for standard spindle configurations\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 6 mm shank for secure toolholder engagement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for 6 mm shank end mill holders, collet chucks, and shrink-fit systems accepting 0.2362-inch or 6 mm bore toolholders in standard CNC machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom personnel. Ensure the spindle is fully stopped and locked before changing tooling. Verify the toolholder bore and collet size match the 6 mm shank before tightening. Follow machine tool manufacturer torque specifications for the specific toolholder type in use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 6 mm (0.2362 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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\u003ePitch\u003c\/strong\u003e: Fine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 13 mm (0.5118 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 57 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6 mm (0.2362 inches)\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\u003eCentercutting\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: 91197525\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737908281650,"sku":"91197525","price":64.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/28513c24d893f3a9577b48fee041e923.jpg?v=1788795008","url":"https:\/\/voomisupply.com\/products\/hertel-91197525-roughing-end-mill-6mm-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}