{"product_id":"value-collection-723-6721-roughing-end-mill-3-8-in-cobalt","title":"Value Collection 723-6721 Roughing End Mill 3\/8 in Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 723-6721 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 TiN (titanium nitride) coating, this tool delivers heat resistance and extended cutting life under demanding conditions. It measures 3\/8 inch in diameter with a 3\/4-inch length of cut and a 2-1\/2-inch overall length. With 4 flutes and a right-hand cutting and flute direction, it handles roughing passes efficiently. Installed by machinists and tool-and-die professionals, this end mill is a workhorse for shops running moderate to high-volume stock removal.\u003c\/p\u003e\u003cp\u003eThis roughing end mill is suited for use in vertical machining centers, knee mills, and manual milling machines where fast material removal is the priority. The 3\/8-inch shank diameter fits standard ER and side-lock toolholders commonly found in production and job-shop environments. It is not center-cutting, so it requires a pre-drilled or pre-slotted entry point before plunging. Typical applications include slotting, profiling, and roughing passes on steel, stainless, and high-temperature alloys where the M42 cobalt substrate offers an advantage over standard M2 HSS tooling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for improved heat and wear resistance\u003c\/li\u003e\n\u003cli\u003eTiN coating extends tool life and reduces friction during cut\u003c\/li\u003e\n\u003cli\u003e4-flute, right-hand cut and right-hand helix geometry optimized for roughing\u003c\/li\u003e\n\u003cli\u003e3\/8-inch diameter with matching 3\/8-inch shank for balanced rigidity\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 3\/4-inch length of cut\u003c\/li\u003e\n\u003cli\u003eNot center-cutting — requires pre-existing entry point for plunge operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 3\/8-inch shank roughing end mill compatible with ER collet chucks, side-lock holders, and weldon-style toolholders accepting a 3\/8-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety protocols. Power down and lock out the spindle before inserting or removing the end mill from the toolholder. Ensure the shank is fully seated and the toolholder is torqued to the machine manufacturer's specification using the appropriate wrench. Confirm runout is within acceptable tolerance before beginning a cut to protect both the tool and the workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 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\u003eCoating\/Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\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: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\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: 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 723-6721\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51704090788146,"sku":"723-6721","price":65.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/25d4caf669e017bfcd7a93c8677e1c06.jpg?v=1788420513","url":"https:\/\/voomisupply.com\/products\/value-collection-723-6721-roughing-end-mill-3-8-in-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}