{"product_id":"iscar-3398261-square-end-mill-1-4-in-4-flute-solid-carbide","title":"Iscar 3398261 Square End Mill 1\/4 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 3398261 is a single-end square end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from submicron-grade solid carbide and coated with TiAlCN, this tool delivers hardness and heat resistance needed for demanding cutting applications. It features a 1\/4-inch diameter with a 1-inch length of cut, a 3-inch overall length, and a 38-degree helix angle. The variable index geometry reduces harmonic vibration during high-speed passes, improving surface finish and extending tool life. It is centercutting capable, allowing for direct plunge entry. This tool is installed by machinists and CNC operators in job shop, production, and toolroom environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for slotting, profiling, and peripheral milling in a wide range of workpiece materials. The right-hand cutting and right-hand spiral flute configuration pairs with standard CNC machining centers and manual mills running conventional or climb milling passes. The 1\/4-inch shank diameter fits standard collets and end mill holders common in both vertical and horizontal machining setups. Applications include die and mold work, fixture fabrication, and precision part production where tight tolerances and clean square shoulders are required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmicron-grade solid carbide construction for rigidity and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTiAlCN coating for elevated heat resistance and reduced built-up edge\u003c\/li\u003e\n  \u003cli\u003e38-degree helix angle promotes smooth chip evacuation and reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eVariable index flute spacing minimizes chatter and harmonic vibration\u003c\/li\u003e\n  \u003cli\u003eCentercutting design enables direct plunge milling without a pre-drilled entry\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with right-hand spiral, 4 flutes for balanced chip load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style solid carbide square end mill replacement for standard 1\/4-inch collet chucks and end mill holders used in CNC machining centers and manual milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed by qualified machinists or CNC operators. Before changing tooling, ensure the spindle is fully stopped and the machine is placed in an appropriate lockout state per facility safety procedures. Use a properly sized collet or end mill holder rated for the 1\/4-inch shank diameter and torque the retention nut to the collet manufacturer's specification. Verify runout with a dial indicator after seating 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\/4 inches (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1 inch\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: 1\/4 inches (0.2500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 38 degrees\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: Submicron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlCN\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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\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\u003eWeight\u003c\/strong\u003e: 0.1 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: 3398261\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51752504820018,"sku":"3398261","price":56.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8880928429e128e6904056ced114eab7.jpg?v=1788928700","url":"https:\/\/voomisupply.com\/products\/iscar-3398261-square-end-mill-1-4-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}