{"product_id":"hertel-e2053040-square-end-mill-5-8-inch-4-flute-cobalt","title":"Hertel E2053040 Square End Mill 5\/8 Inch 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E2053040 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 resistance and edge retention beyond standard HSS tooling. The cutter measures 5\/8 inch in diameter with a 1-3\/8 inch length of cut and a 5 inch overall length. A 30-degree spiral helix and four flutes work together to improve chip evacuation and surface finish. The double-end design extends tool life by providing two usable cutting ends. This is an uncoated, centercutting end mill, meaning it can be fed directly into a workpiece for plunge cuts without a pre-drilled entry hole.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for general milling, slotting, profiling, and plunging in steel, stainless, cast iron, and high-temperature alloys. It is a regular-length tool, appropriate for production shops, toolrooms, and maintenance environments where cobalt tooling is the standard specification. The right-hand cut and right-hand flute configuration fits conventional vertical and horizontal milling setups as well as CNC machining centers. It ships individually and is ordered in single-unit quantities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for heat resistance and edge retention in tough alloys\u003c\/li\u003e\n  \u003cli\u003eDouble-end design provides two cutting ends per tool, reducing per-operation cost\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry allows direct plunge entry without pre-drilling\u003c\/li\u003e\n  \u003cli\u003e30-degree helix spiral flute promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eFour flutes balance material removal rate and surface finish\u003c\/li\u003e\n  \u003cli\u003eUncoated finish — compatible with cutting fluids and oils used in cobalt tooling applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-application square end mill for use in standard milling chucks, collet holders, and end mill adapters accepting a 5\/8 inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips or burrs before seating the shank. Torque set screws or collet nuts per the tool holder manufacturer specifications. Confirm runout with a dial indicator before beginning the cut, as excessive runout will accelerate wear on a cobalt tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-3\/8 inch (1.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/8 inch (0.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 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\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42)\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: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble End\u003c\/strong\u003e: Yes\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: 0.32 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: E2053040\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737880428850,"sku":"E2053040","price":107.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a92e99f889e622f382d8452584ff88de.jpg?v=1788794800","url":"https:\/\/voomisupply.com\/products\/hertel-e2053040-square-end-mill-5-8-inch-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}