{"product_id":"hertel-e2036016-square-end-mill-0-25in-4-flute-cobalt","title":"Hertel E2036016 Square End Mill 0.25in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E2036016 is a cobalt square end mill designed for milling operations in ferrous and difficult-to-machine materials. Built from M42 cobalt high-speed steel, it delivers heat and wear resistance beyond standard HSS tooling, making it suitable for stainless steel, hardened alloys, and tough forgings. The mill features a 0.25-inch cutting diameter, 4 flutes for improved finish and chip evacuation, and a 30-degree right-hand spiral helix. With an extra-long 1.75-inch length of cut and 3.5625-inch overall length, it reaches into deeper pockets and slots where standard-length end mills fall short. Delivered uncoated and ready to run.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for production and job shop environments where operators are profiling, slotting, and pocketing in materials that generate high cutting temperatures. The 0.375-inch shank diameter mounts into standard end mill holders, collet chucks, and Weldon-style holders used on vertical machining centers and manual knee mills. The extra-long configuration is particularly useful for deep-pocket work and extended-reach applications where a standard-length tool cannot engage the full feature depth. This is a non-centercutting tool and is not intended for direct plunge entry.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt HSS construction resists heat buildup in tough and abrasive workpiece materials\u003c\/li\u003e\n  \u003cli\u003e4 right-hand spiral flutes with 30-degree helix angle for efficient chip flow and surface finish\u003c\/li\u003e\n  \u003cli\u003eExtra-long 1.75-inch length of cut for deep slots and pockets\u003c\/li\u003e\n  \u003cli\u003e0.375-inch shank diameter fits standard collet and end mill holder tooling\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for use with cutting fluids or dry cutting depending on application\u003c\/li\u003e\n  \u003cli\u003eNon-centercutting geometry — ramp or helical entry required, not direct plunge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-application solid end mill for vertical machining centers, CNC mills, and manual knee mills accepting a 0.375-inch round shank in standard collet chucks or end mill holders.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing tooling. Secure the 0.375-inch shank fully within the holder to the recommended gauge-line depth to minimize runout and tool deflection. Because this is a non-centercutting end mill, program a ramp or helical entry toolpath — do not plunge directly into solid stock.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\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\u003eLength of Cut\u003c\/strong\u003e: 1.75 inches (1-3\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5625 inches (3-9\/16 inch)\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\u003eLength Type\u003c\/strong\u003e: Extra Long\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\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: E2036016\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51751811711282,"sku":"E2036016","price":60.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9b1a9e41dbc2a6b04c9e66e0600b13bf.jpg?v=1788924342","url":"https:\/\/voomisupply.com\/products\/hertel-e2036016-square-end-mill-0-25in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}