{"product_id":"hertel-e202004002-ball-end-mill-0-625-in-4-flute-hss","title":"Hertel E202004002 Ball End Mill 0.625 in 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E202004002 is a single-end ball end mill designed for milling contoured surfaces, slots, and three-dimensional profiles in metal workpieces. Built from M7 high speed steel with an uncoated finish, it measures 0.625 inches in diameter with a 1.625-inch length of cut and a 3.75-inch overall length. The 4-flute spiral configuration with a 30-degree right-hand helix delivers a balance of chip evacuation and surface finish quality. This tool is suited for general-purpose milling operations where HSS tooling is preferred over carbide, particularly in lower-speed setups or on manual mills and older CNC machining centers.\u003c\/p\u003e\n\u003cp\u003eThis end mill fits residential shop, production floor, and maintenance machining applications where ball nose geometry is required to produce radiused pockets, fillets, and complex contoured cuts. The 0.625-inch shank diameter matches the cutting diameter, allowing direct chuck or collet mounting without a reduction bushing. Right-hand cutting direction and spiral flute geometry make it compatible with standard right-hand spindle configurations. It is a regular-length tool, appropriate for setups where extended reach is not required and maximum rigidity is a priority.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBall nose geometry for contouring, profiling, and radiused pocket milling\u003c\/li\u003e\n  \u003cli\u003eM7 high speed steel construction for toughness in interrupted cuts and general-purpose applications\u003c\/li\u003e\n  \u003cli\u003e4-flute spiral design with 30-degree right-hand helix for balanced chip flow and surface finish\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for use with cutting fluids on ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eSingle-end tool with matching 0.625-inch shank and cutting diameter for straightforward collet mounting\u003c\/li\u003e\n  \u003cli\u003eRegular length for maximum rigidity in standard-depth milling setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit end mill for standard 0.625-inch collet or chuck toolholders on right-hand spindle milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. The shank should be inserted to the full recommended engagement depth in the collet or chuck to prevent pullout under cutting loads. Verify runout with a dial indicator after mounting before beginning a cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.75 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: 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: 0.26 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: E202004002\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51747896885554,"sku":"E202004002","price":104.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a563160d4d1a8835c180ad336e2650f1.jpg?v=1788886791","url":"https:\/\/voomisupply.com\/products\/hertel-e202004002-ball-end-mill-0-625-in-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}