{"product_id":"hertel-e2039064-square-end-mill-1-in-4-flute-cobalt","title":"Hertel E2039064 Square End Mill 1 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E2039064 is a 1-inch diameter cobalt square end mill designed for general-purpose milling of ferrous and high-temperature alloy materials. Built from M42 cobalt high-speed steel, it delivers toughness and heat resistance in demanding cutting conditions. The 4-flute spiral geometry with a 30-degree helix angle promotes smooth chip evacuation and stable cutting action. With a 2-inch length of cut and 4.5-inch overall length, this is a standard-reach tool suited for slotting, profiling, and peripheral milling operations. A licensed machinist or tool-and-die professional would typically deploy this end mill on manual or CNC milling machines where consistent material removal rates and edge durability are required.\u003c\/p\u003e\n\u003cp\u003eThis end mill is appropriate for use in job shop, production machining, and maintenance environments. Its centercutting capability allows direct plunge entry into the workpiece, adding flexibility for interpolated pocket milling without a pre-drilled entry hole. The right-hand cut and right-hand flute configuration is the standard orientation for conventional vertical milling setups. The 1-inch shank diameter matches standard ER or straight-bore collet chucks and end mill holders commonly found in milling operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt HSS construction provides elevated heat and wear resistance compared to standard M2 tooling\u003c\/li\u003e\n  \u003cli\u003e4-flute spiral design with 30-degree helix angle for balanced chip load and surface finish\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry allows direct plunge milling without a pilot hole\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand flute — standard orientation for vertical milling machines\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for use with cutting fluids or coolant on a wide range of ferrous materials\u003c\/li\u003e\n  \u003cli\u003eRegular length profile with 1-inch shank matches standard end mill holders and collet chucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard-profile cobalt square end mill compatible with 1-inch straight-bore end mill holders, ER collet chucks, and Weldon-style holders used on vertical and horizontal milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist familiar with toolholder torque procedures and runout verification. Ensure the milling spindle is fully stopped and the machine is locked out before inserting or removing the tool. Seat the shank fully into the holder and torque set screws or collet nuts per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning production cuts to prevent premature tool wear or workpiece damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\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\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42 HSS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\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\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: 0.84 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: E2039064\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51730461065522,"sku":"E2039064","price":123.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4970d0c3c8a5f1401248bb23827811f1.jpg?v=1788717850","url":"https:\/\/voomisupply.com\/products\/hertel-e2039064-square-end-mill-1-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}