{"product_id":"iscar-3399018-square-end-mill-5-16-in-3-flute-carbide-dlc","title":"Iscar 3399018 Square End Mill 5\/16 in 3 Flute Carbide Dlc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 3399018 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. It features a 5\/16-inch diameter, a 7\/8-inch length of cut, and a 45-degree helix angle with a DLC (Diamond-Like Carbon) coating that improves wear resistance and extends tool life in demanding cutting conditions. The submicron carbide grade provides a fine, consistent grain structure suited for high-speed and finish milling operations. With three flutes and a variable index design, this end mill reduces harmonic vibration during cutting, improving surface finish quality. It is a single-end tool with right-hand cutting and right-hand flute direction.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in CNC machining centers and manual milling machines across job shops, aerospace, die and mold, and general precision manufacturing environments. The 5\/16-inch shank diameter matches the cutting diameter, making it straightforward to chuck in standard collets. The 2-1\/2-inch overall length provides adequate reach for most standard workpiece setups without excessive overhang. Its centercutting capability allows plunge milling as well as conventional peripheral cutting passes. Licensed machinists and CNC programmers working on ferrous and non-ferrous materials will find this tool suited for slotting, profiling, and pocketing operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide submicron grain construction for rigidity and edge retention\u003c\/li\u003e\n  \u003cli\u003eDLC coating reduces friction and improves abrasion resistance in dry or light-lubrication cutting\u003c\/li\u003e\n  \u003cli\u003e45-degree helix angle promotes smooth chip evacuation and reduced cutting force\u003c\/li\u003e\n  \u003cli\u003eVariable index flute spacing minimizes chatter and harmonic vibration\u003c\/li\u003e\n  \u003cli\u003eCentercutting design enables direct plunge entry into workpieces\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand spiral flute for standard CNC and manual mill spindles\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 suitable for use in standard 5\/16-inch collet chucks or end mill holders on CNC machining centers and manual milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety protocols. Secure the shank fully within the collet or end mill holder to the recommended engagement depth before tightening. Ensure spindle and machine are at a complete stop before changing or inspecting tooling. Inspect the cutting edges for chips or wear before each use, as carbide tools can fracture if run with damaged edges.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 7\/8 inches (0.875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches (2.5 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 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\/Finish\u003c\/strong\u003e: DLC (Diamond-Like Carbon)\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\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eSingle or Double End\u003c\/strong\u003e: Single End\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: 3399018\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51730427085106,"sku":"3399018","price":78.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1ba32a6c345bc1a81625bb9fb60cc37b_9776ec33-e005-46b1-9d3b-35e049cc2534.jpg?v=1788717258","url":"https:\/\/voomisupply.com\/products\/iscar-3399018-square-end-mill-5-16-in-3-flute-carbide-dlc","provider":"Voomi Supply","version":"1.0","type":"link"}