{"product_id":"hertel-e2031024-square-end-mill-3-8-in-4-flute-cobalt","title":"Hertel E2031024 Square End Mill 3\/8 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E2031024 is a 4-flute cobalt square end mill designed for general-purpose milling in ferrous and high-temperature alloy materials. Built from M42 cobalt high-speed steel, it offers improved heat and wear resistance compared to standard M2 HSS tooling. The 3\/8 inch cutting diameter and 3\/4 inch length of cut make it well suited for slotting, profiling, and peripheral milling operations on manual mills and CNC machining centers. The uncoated finish and 30-degree right-hand spiral flute geometry provide reliable chip evacuation in a wide range of conventional milling setups. This end mill is installed and run by machinists and tool-and-die professionals working in job shop, maintenance, and production environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in ferrous metal milling applications including steel, stainless steel, and high-temperature alloys where cobalt tooling outperforms standard HSS. The 3\/8 inch shank diameter fits standard ER collet chucks, end mill holders, and Weldon-style holders common to vertical milling machines and CNC machining centers. The regular-length geometry suits typical through-pocket, slotting, and step-milling operations where extended reach is not required. It is a single-end tool with right-hand cut and right-hand flute orientation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt HSS construction for improved heat resistance and tool life in ferrous alloys\u003c\/li\u003e\n  \u003cli\u003e4-flute spiral geometry with 30-degree helix angle for stable chip load and surface finish\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand flute — standard orientation for conventional and climb milling\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for use with cutting fluids on a broad range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eNon-centercutting design — not intended for direct plunge entry without a pre-drilled hole\u003c\/li\u003e\n  \u003cli\u003eRegular length classification for rigid setups with minimal overhang\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard tooling selection for 3\/8 inch end mill holders, ER collet systems, and Weldon-style holders used in vertical milling machines and CNC machining centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist using an appropriate end mill holder or collet chuck sized for a 3\/8 inch shank. Ensure the holder and spindle are clean and free of chips before seating the tool. Confirm spindle direction is set to right-hand rotation before engaging the cut. This tool is non-centercutting and requires a pre-drilled hole or ramping entry for plunge operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\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\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42 HSS)\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\u003eCentercutting\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\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: 0.504 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: E2031024\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51747608494386,"sku":"E2031024","price":34.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3e120869b60cc19f0cf341a4b5ed9367.jpg?v=1788883363","url":"https:\/\/voomisupply.com\/products\/hertel-e2031024-square-end-mill-3-8-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}