{"product_id":"iscar-5621957-square-end-mill-3-8-in-6-flute-solid-carbide","title":"Iscar 5621957 Square End Mill 3\/8 in 6 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 5621957 is a solid carbide square end mill engineered for high-performance milling across a broad range of workpiece materials. It features a 3\/8 inch diameter, a 7\/8 inch length of cut, and a 6-flute configuration with a 45-degree helix angle. The TiAlN coating provides heat and oxidation resistance, making this tool well suited for demanding cutting applications. The IC903 material grade is designed to maintain edge integrity under elevated cutting temperatures. This end mill is a single-end tool with a straight cylindrical shank and right-hand cutting and flute direction, intended for installation in standard milling machine or machining center tool holders.\u003c\/p\u003e\n\u003cp\u003eThis end mill is applicable across multiple workpiece material categories, including hardened steels, cast irons, stainless steels, carbon and alloy steels, and high-temperature superalloys, as indicated by material codes H, K, M, P, and S. It is suited for slot milling, peripheral milling, and finishing passes in both CNC machining centers and manual knee mills. The regular-length geometry and 3 inch overall length make it a practical choice for general-purpose and production milling operations. It is not center-cutting, so plunge entry is not recommended without a pilot hole or ramping strategy.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction with IC903 grade for elevated cutting temperature resistance\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating for extended tool life in high-speed and dry machining applications\u003c\/li\u003e\n  \u003cli\u003e6 flutes with 45-degree spiral helix for improved chip evacuation and surface finish\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute direction for standard milling spindle compatibility\u003c\/li\u003e\n  \u003cli\u003e3\/8 inch straight cylindrical shank fits standard collets and end mill holders\u003c\/li\u003e\n  \u003cli\u003eNot center-cutting — plunge milling requires an alternative entry strategy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with workpiece material categories H, K, M, P, and S as specified by the manufacturer, covering hardened steels, cast irons, stainless steels, steels, and superalloys. Designed for use in standard 3\/8 inch collet chucks, end mill holders, or shrink-fit holders on CNC machining centers and milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists and CNC setup technicians. Ensure the tool holder and spindle taper are clean and free of chips before seating the shank. Verify runout with a dial indicator after clamping, as excessive runout reduces tool life on multi-flute carbide end mills. Follow the machine manufacturer and tooling manufacturer guidelines for speeds, feeds, and depth of cut before beginning the operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 7\/8 inches (0.8750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: IC903\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Cutting\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\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Codes\u003c\/strong\u003e: H, K, M, P, S\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.64 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: ISCAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5621957\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51749578047794,"sku":"5621957","price":152.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/92ed62fca105f617e1ba6bdb55f6980e.jpg?v=1788907887","url":"https:\/\/voomisupply.com\/products\/iscar-5621957-square-end-mill-3-8-in-6-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}