{"product_id":"hertel-e2030904-square-end-mill-3-4-in-2-flute-cobalt","title":"Hertel E2030904 Square End Mill 3\/4 in 2 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E2030904 is a cobalt square end mill designed for metal removal in milling applications where toughness and heat resistance are required. Built from M42 cobalt high-speed steel, this single-end tool features a 3\/4 inch cutting diameter, a 1-5\/16 inch length of cut, and a 2-flute spiral geometry with a 30-degree helix angle. The bright, uncoated finish is suitable for a wide range of ferrous and non-ferrous materials. This end mill is installed by machinists and tool-and-die professionals working on manual mills, CNC machining centers, and knee mills where a center-cutting, right-hand spiral tool is required.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for slotting, peripheral milling, and plunge-cutting operations in job shops, maintenance machining, and production environments. The 2-flute configuration provides strong chip evacuation in softer steels, aluminum alloys, and similar materials. With a 1\/2 inch shank diameter and 3-5\/16 inch overall length, it fits standard ER and straight-bore tool holders commonly found in both manual and CNC setups. The regular length classification keeps the tool rigid for general-purpose cuts.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for heat and wear resistance\u003c\/li\u003e\n\u003cli\u003e3\/4 inch cutting diameter with 1-5\/16 inch length of cut\u003c\/li\u003e\n\u003cli\u003e2-flute spiral geometry with 30-degree right-hand helix for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCenter-cutting design allows direct plunge entry into workpiece material\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish for broad material compatibility\u003c\/li\u003e\n\u003cli\u003e1\/2 inch shank diameter fits standard collet and end mill holders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose replacement or production end mill for use in any standard end mill holder, collet chuck, or milling fixture accepting a 1\/2 inch straight shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed with the machine spindle fully stopped and locked out per applicable safety procedures. Seat the shank fully into the tool holder and torque the retention hardware to the tool holder manufacturer specification. Verify runout with a dial indicator before taking a cut. Inspect the cutting edges and shank for damage before each use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-5\/16 inch (1.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-5\/16 inch (3.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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 (M42 HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright, 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: 0.25 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: E2030904\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51734107390258,"sku":"E2030904","price":91.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/327dacf09e6d2eb3c6731703b2932100.jpg?v=1788760954","url":"https:\/\/voomisupply.com\/products\/hertel-e2030904-square-end-mill-3-4-in-2-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}