{"product_id":"cleveland-c32509-square-end-mill-5-16-in-2-flute-cobalt","title":"Cleveland C32509 Square End Mill 5\/16 in 2 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C32509 is a cobalt square end mill built for demanding metal removal in ferrous and high-temperature alloy applications. The 5\/16-inch cutting diameter pairs with a 9\/16-inch length of cut and a 3\/8-inch straight-cylindrical shank with Weldon flat, giving machinists a solid, positive-drive setup in standard end mill holders. Made from M42 cobalt high-speed steel and finished with a TiN coating, this tool handles elevated cutting temperatures better than standard HSS. It runs right-hand cut with right-hand spiral flutes at a 30-degree helix angle, producing efficient chip evacuation on a wide range of steels and superalloys. Centercutting geometry allows direct plunge milling without a pre-drilled hole.\u003c\/p\u003e\u003cp\u003eThis end mill is sized for regular-length work on manual mills, CNC machining centers, and knee mills. Primary workpiece materials include steel, stainless steel, and high-temperature alloys, making it a practical choice for tool rooms, job shops, and maintenance departments that run mixed material schedules. The HGC-2 series is designed for general-purpose to mid-performance milling where cobalt is preferred over carbide for toughness and re-grindability. With a 2-1\/2-inch overall length, it fits standard collets and side-lock holders without extended-reach adapters.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction for improved heat resistance and tool life over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiN finish reduces friction and extends tool life on ferrous workpiece materials\u003c\/li\u003e\n\u003cli\u003e30-degree right-hand spiral flute promotes smooth chip flow and reduced chatter\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge entry without pilot drilling\u003c\/li\u003e\n\u003cli\u003eWeldon flat on shank prevents slippage in side-lock holders under heavy cuts\u003c\/li\u003e\n\u003cli\u003e2-flute geometry provides larger chip gullets, suitable for slotting and profiling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct substitute for regular-length cobalt square end mills with a 5\/16-inch diameter, 3\/8-inch shank, and 2-flute configuration; verify holder specs before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or toolroom technicians familiar with end mill holder setup and runout verification. Ensure the machine spindle is fully stopped and locked before changing tooling. Seat the shank fully into the holder and torque the set screw against the Weldon flat per the holder manufacturer specification. Verify tool runout with a dial indicator before commencing a cut to prevent premature tool wear or workpiece damage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eLength of Cut\u003c\/strong\u003e: 9\/16 inches (0.5625 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\u003eOverall Length\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: TiN\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: 30 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical with Weldon Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: High Temperature Alloy, Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HGC-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C32509\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51715902636338,"sku":"C32509","price":44.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc2dcd80d98464a05fb76e4ddd4feb26.jpg?v=1788519528","url":"https:\/\/voomisupply.com\/products\/cleveland-c32509-square-end-mill-5-16-in-2-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}