{"product_id":"iscar-3399296-corner-radius-end-mill-1-4-in-3-flute-carbide","title":"Iscar 3399296 Corner Radius End Mill 1\/4 in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 3399296 is a solid carbide corner radius end mill designed for high-performance material removal in non-ferrous metal applications. It carries a 0.25 inch cutting diameter with a 0.015 inch corner radius, three flutes, and a right-hand spiral flute geometry in the ECAI-B3-EC series. The DLC (diamond-like carbon) PVD coating provides wear resistance suited to aluminum, copper, brass, and similar non-ferrous workpiece materials. At 2.5 inches overall length with a 0.75 inch reach and an extended-reach configuration, this tool handles both roughing and finishing passes in a single setup. Machinists and CNC operators working in job shops or production environments are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis end mill is intended for non-ferrous metal cutting operations including aluminum alloys, copper, and brass. Its coarse pitch, three-flute design promotes chip evacuation in gummy materials. The centercutting geometry allows plunge entry, making it suitable for full-slot milling, pocket roughing, and contour finishing where a consistent corner radius blends wall-to-floor transitions. The straight cylindrical shank mounts directly into standard collet chucks or end mill holders. It is not rated for ferrous or hardened steel applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.015 inch corner radius reduces stress concentration at wall-to-floor transitions\u003c\/li\u003e\n  \u003cli\u003eDLC PVD coating optimized for non-ferrous metals, providing low friction and extended tool life\u003c\/li\u003e\n  \u003cli\u003eThree-flute coarse pitch design promotes chip clearance in aluminum and copper alloys\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry enables direct plunge entry without a pre-drilled pilot hole\u003c\/li\u003e\n  \u003cli\u003eExtended-reach configuration at 0.75 inch reach length for accessing deeper features\u003c\/li\u003e\n  \u003cli\u003eSubmicron carbide grade provides fine grain structure for edge sharpness and toughness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard collet-style toolholders accepting a 0.25 inch straight cylindrical shank. Primary workpiece material compatibility is non-ferrous metal (material code N). Manufacturer catalog reference: ECAI-B3 .25-.8CR015-2.5EC.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machining professionals or CNC setup technicians. Ensure the machine spindle is fully stopped and the tool changer or spindle lock is engaged before inserting or removing the tool. Seat the shank fully into the collet or end mill holder to the recommended insertion depth per the toolholder manufacturer. Verify runout with a dial indicator before the first cut, as excessive runout accelerates tool wear and degrades surface finish on non-ferrous workpieces.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.015 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReach Length\u003c\/strong\u003e: 0.75 inches\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: DLC (PVD)\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Corner Radius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Non-Ferrous Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Removal Type\u003c\/strong\u003e: Roughing and Finishing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: ECAI-B3-EC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: 3399296\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51736869929266,"sku":"3399296","price":69.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/779d84f7690709a8c18604267d4f1519_c212ce7e-b1c6-4ee1-abf2-f2e4164c8da6.jpg?v=1788781305","url":"https:\/\/voomisupply.com\/products\/iscar-3399296-corner-radius-end-mill-1-4-in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}