{"product_id":"accupro-311395-square-end-mill-3-16-in-5-flute-solid-carbide","title":"Accupro 311395 Square End Mill 3\/16 in 5 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO 311395 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 3\/16 inch (0.1875 inch) cutting diameter and a 3\/4 inch length of cut, with five spiral flutes that improve chip evacuation and surface finish. The 38-degree helix angle reduces cutting forces and helps maintain stability at higher feed rates. An AlTiCrN coating provides excellent heat resistance and wear protection, making this end mill well suited for hardened steels, stainless, and high-temperature alloys. It is a single-end, right-hand cutting tool from the HS Series, built from micrograin carbide for edge retention in demanding cuts.\u003c\/p\u003e\n\u003cp\u003eThis end mill is used in CNC machining centers and manual milling machines for slotting, profiling, and finishing operations. The variable index flute spacing helps dampen chatter during aggressive cuts. With a 3\/16 inch shank diameter matching the cutter diameter, it fits standard collets and end mill holders of the same bore. The 2.5 inch overall length provides adequate clearance for most workholding setups without sacrificing rigidity. Machinists working in job shops, tool rooms, and production environments will find this tool appropriate for tight-tolerance finish work in ferrous and non-ferrous materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5-flute spiral design improves chip flow and allows higher feed rates compared to standard 4-flute geometry\u003c\/li\u003e\n  \u003cli\u003e38-degree helix angle reduces radial cutting forces and supports smooth surface finishes\u003c\/li\u003e\n  \u003cli\u003eAlTiCrN coating delivers elevated heat resistance and extended tool life in hard or abrasive materials\u003c\/li\u003e\n  \u003cli\u003eVariable index flute spacing reduces harmonic chatter during deep slotting and profiling passes\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry allows plunge entry directly into the workpiece\u003c\/li\u003e\n  \u003cli\u003eMicrograin solid carbide substrate provides superior hardness and edge integrity over standard carbide grades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for standard 3\/16 inch shank end mill holders and collet chucks used in CNC machining centers and manual knee mills. No specific OEM replacement part numbers were provided in available product data.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following the machine tool manufacturer's toolholding specifications. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the shank to the recommended minimum engagement depth in the collet or holder to prevent pullout under load. Verify runout with a dial indicator before beginning production cuts, particularly at the small diameter of this tool where even minor runout significantly impacts tool life and surface finish.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter (mm)\u003c\/strong\u003e: 4.76 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inches (0.7500 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 38 degrees\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 Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiCrN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide (Micrograin)\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\u003eChipbreaker\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\u003eSeries\u003c\/strong\u003e: HS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 311395\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51728452092210,"sku":"311395","price":42.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1230b737a78ea48d39e1bc82d1a219ad.jpg?v=1788691417","url":"https:\/\/voomisupply.com\/products\/accupro-311395-square-end-mill-3-16-in-5-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}