{"product_id":"hertel-e202002002-ball-end-mill-5-16-in-4-flute-hss","title":"Hertel E202002002 Ball End Mill 5\/16 in 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E202002002 is a single-end ball end mill designed for contour milling, slotting, and profiling operations in metal fabrication and machining applications. Built from M7 high speed steel with a bright, uncoated finish, this end mill measures 0.3125 inches (5\/16 inches) in cutting diameter with a 3\/4 inch length of cut and a 2-1\/2 inch overall length. The 4-flute, right-hand spiral configuration provides efficient chip evacuation and a smooth finish on ferrous and non-ferrous workpieces. A 30-degree helix angle balances cutting performance and tool rigidity across a range of feed rates and depths of cut.\u003c\/p\u003e\u003cp\u003eThis ball end mill is suited for use in CNC machining centers, knee mills, and manual milling machines where radius-profile cuts, 3D contouring, and pocket finishing are required. The 3\/8 inch straight shank fits standard ER collet chucks and end mill holders commonly found in job shops, maintenance machining environments, and production facilities. It is a single-end tool intended for right-hand cutting operations on materials including mild steel, alloy steel, aluminum, and similar machinable metals.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM7 high speed steel construction for wear resistance on ferrous and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003e4 flutes with right-hand spiral flute direction for efficient chip removal\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle balances tool stiffness and cut smoothness\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for general-purpose machining without coolant incompatibility concerns\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 3\/8 inch shank for standard collet and end mill holder fitment\u003c\/li\u003e\n\u003cli\u003e0.3125 inch ball nose profile for radius contouring and 3D surface finishing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose replacement or direct-use ball end mill for standard 3\/8 inch collet chucks and end mill holders on CNC and manual milling machines requiring a 5\/16 inch ball nose tool.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the 3\/8 inch shank fully into the collet or end mill holder and torque the retention hardware according to the machine tool manufacturer specifications. Confirm runout with a dial indicator before beginning the cut to avoid premature tool wear or workpiece damage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches\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\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: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\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\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: E202002002\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51734611591474,"sku":"E202002002","price":41.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5ddda1914839d9312b65a1d8e85c52a4.jpg?v=1788763846","url":"https:\/\/voomisupply.com\/products\/hertel-e202002002-ball-end-mill-5-16-in-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}