{"product_id":"hertel-e4042048-square-end-mill-3-4-in-6-flute-cobalt","title":"Hertel E4042048 Square End Mill 3\/4 in 6 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E4042048 is a cobalt square end mill designed for metal cutting operations in demanding machining environments. Built from M42 cobalt high-speed steel, it delivers heat resistance and edge retention when cutting alloy steels, stainless, and hardened materials. The 6-flute geometry provides a higher feed rate capability and improved surface finish compared to lower flute-count mills. A 30-degree helix angle aids chip evacuation and reduces cutting forces. The TiN (Titanium Nitride) coating adds surface hardness and lubricity, extending tool life in production runs. This is a single-end, right-hand cut, right-hand spiral tool suited for milling, slotting, and peripheral cutting applications.\u003c\/p\u003e\u003cp\u003eThis end mill fits standard CNC machining centers, vertical mills, and knee mills used in job shops, tool rooms, and production environments. The 3\/4 inch diameter and 1-5\/8 inch length of cut make it appropriate for moderate-depth slotting and profiling on ferrous and non-ferrous workpieces. The regular-length designation suits general-purpose setups where extended reach is not required. Machinists and CNC operators working in industrial, aerospace, and general metalworking settings will find this tool appropriate for roughing and semi-finishing passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt HSS construction for heat and wear resistance\u003c\/li\u003e\n\u003cli\u003e6 flutes for improved feed rates and surface finish\u003c\/li\u003e\n\u003cli\u003eTiN coating increases surface hardness and reduces friction\u003c\/li\u003e\n\u003cli\u003e30-degree right-hand spiral helix for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capable — suitable for plunge entry\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 3\/4 inch straight shank\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 3\/4 inch shank square end mill compatible with ER collets, end mill holders, and other 3\/4 inch bore toolholding systems on CNC and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Ensure the toolholder bore is clean and free of chips before seating the shank, and verify runout with a dial indicator before production. Minimum shank engagement depth should follow the toolholder manufacturer guidelines. Confirm spindle speed and feed rate are appropriate for workpiece material and depth of cut before engaging the cutter.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/4 inches (0.750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-5\/8 inches (1.625 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-7\/8 inches (3.875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inches (0.750 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\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eSingle or Double End\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\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: 0.42 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: E4042048\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51749886853426,"sku":"E4042048","price":99.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f7a8dbba5b26e27fca17785631199774.jpg?v=1788911726","url":"https:\/\/voomisupply.com\/products\/hertel-e4042048-square-end-mill-3-4-in-6-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}