{"product_id":"hertel-e2031903-square-end-mill-0-5-in-4-flute-cobalt","title":"Hertel E2031903 Square End Mill 0.5 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E2031903 is a 4-flute cobalt square end mill designed for general-purpose milling operations in machine shop and manufacturing environments. With a 0.5 inch cutting diameter and a 1 inch length of cut, this tool handles slotting, profiling, and peripheral milling on a range of ferrous and non-ferrous workpiece materials. The 3\/8 inch shank diameter fits standard collets and end mill holders on vertical and horizontal machining centers as well as manual knee mills. Cobalt construction in M42 grade provides elevated heat and wear resistance compared to standard high-speed steel, making it well suited for harder steels and stainless alloys.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for production and job-shop machinists running conventional or CNC milling equipment. The regular-length geometry and 2-11\/16 inch overall length make it a practical choice for general-depth cuts where extended reach is not required. The 30-degree spiral helix and right-hand cut with right-hand flute configuration produce efficient chip evacuation during climb and conventional milling. It ships as a single unit and is appropriate for toolroom use, fixture work, and general metal removal applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for improved heat and wear resistance over standard HSS\u003c\/li\u003e\n  \u003cli\u003e4-flute spiral design with 30-degree helix angle for efficient chip flow\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute for standard milling machine spindle direction\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for use with cutting fluid on a wide range of materials\u003c\/li\u003e\n  \u003cli\u003eRegular length geometry keeps tool overhang minimal for rigidity\u003c\/li\u003e\n  \u003cli\u003eNot center-cutting — not intended for direct plunge entry into solid material\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard 3\/8 inch collets or end mill holders on vertical machining centers, CNC mills, and manual knee mills requiring a 0.5 inch diameter square end mill with a 3\/8 inch reduced shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists following standard tool-holding procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing any end mill. Seat the shank fully into the collet or holder to the recommended engagement depth and torque the retention nut according to the toolholder manufacturer specifications. This tool is not center-cutting and must not be used for direct plunge milling into solid stock without a pre-drilled entry hole.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5 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: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-11\/16 inches\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\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Cutting\u003c\/strong\u003e: No\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\u003eChipbreaker\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: 0.504 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: E2031903\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51744584728882,"sku":"E2031903","price":60.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ddc4676664b9256024aa7bfefe0bbe0b.jpg?v=1788858639","url":"https:\/\/voomisupply.com\/products\/hertel-e2031903-square-end-mill-0-5-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}