{"product_id":"hertel-e4030028-square-end-mill-7-16-in-2-flute-cobalt","title":"Hertel E4030028 Square End Mill 7\/16 in 2 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E4030028 is a 2-flute cobalt square end mill designed for milling ferrous and hard materials in demanding shop environments. Built from M42 cobalt high-speed steel with a titanium nitride (TiN) finish, this tool delivers heat and wear resistance suited to tough alloy steels, stainless, and hardened workpieces. The 7\/16-inch cutting diameter pairs with a 3\/8-inch shank, a 13\/16-inch length of cut, and a 2.5-inch overall length. A 30-degree helix spiral flute geometry promotes chip evacuation and smooth cutting action. This is a centercutting end mill, enabling direct plunge entry into the workpiece. Installation is performed by machinists and tooling technicians on manual mills and CNC machining centers.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for slotting, profiling, and peripheral milling operations in job shops, toolrooms, and production machining environments. The regular-length geometry fits standard toolholders with a 3\/8-inch bore. Right-hand cut and right-hand flute configuration are consistent with conventional spindle rotation on most vertical and horizontal milling machines. The TiN coating extends tool life compared to uncoated cobalt tooling, making this a practical choice when cutting alloy steel, tool steel, and similar materials where HSS performance falls short.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt M42 construction for improved red hardness and wear resistance over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiN finish reduces friction and extends tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows plunge milling without a pre-drilled entry hole\u003c\/li\u003e\n\u003cli\u003e30-degree helix spiral flute promotes chip flow and reduces cutting forces\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute for standard spindle applications\u003c\/li\u003e\n\u003cli\u003e2-flute configuration provides chip clearance in tougher, stickier materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling fit for milling machines and machining centers using 3\/8-inch shank toolholders, collets, or end mill adapters.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and locked before inserting or removing the tool from the holder. Secure the shank to the full recommended engagement depth in the collet or holder to prevent pullout under load. Follow applicable shop safety procedures and machine tool manufacturer guidelines when setting feeds, speeds, and depth of cut for the specific workpiece material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 7\/16 inches (0.4375 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 13\/16 inches (0.8125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: TiN (Titanium Nitride)\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\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: E4030028\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51729693475122,"sku":"E4030028","price":57.36,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/364ab5eb019f74fb99ba4a7baff17558.jpg?v=1788707911","url":"https:\/\/voomisupply.com\/products\/hertel-e4030028-square-end-mill-7-16-in-2-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}