{"product_id":"cleveland-c33388-square-end-mill-5-16-in-4-flute-hss-tin","title":"Cleveland C33388 Square End Mill 5\/16 in 4 Flute Hss Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C33388 is a 4-flute, single-end square end mill designed for material removal in ferrous and non-ferrous machining operations. Built from high speed steel with a titanium nitride (TiN) finish, it provides improved surface hardness and heat resistance compared to uncoated HSS tooling. The 5\/16-inch cutting diameter pairs with a 3\/8-inch straight-cylindrical shank (with Weldon flat), keeping the tool secure in standard end mill holders. A 30-degree helix angle and spiral flute geometry support chip evacuation across a range of feed rates. This tool is installed and run by machinists in job shop, production, and maintenance environments.\u003c\/p\u003e\u003cp\u003eThe C33388 is suited for milling cast iron, non-ferrous metals, and steel in light-to-medium duty applications. Its centercutting geometry allows plunge entry, making it viable for slot milling, profiling, and pocket operations without a pre-drilled entry point. The regular-length classification and 1-3\/8-inch length of cut make it appropriate for general-purpose work where extended reach is not required. Right-hand cut and right-hand flute orientation are standard for conventional CNC and manual milling setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiN coating improves surface hardness and extends tool life in steel and cast iron\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge milling without a pilot hole\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle promotes smooth chip flow and reduces cutting forces\u003c\/li\u003e\n\u003cli\u003eWeldon flat on shank prevents tool pullout under load\u003c\/li\u003e\n\u003cli\u003e4-flute configuration balances chip clearance with surface finish quality\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute — compatible with standard spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard end mill holders and collet chucks accepting a 3\/8-inch straight shank. Primary workpiece materials are cast iron, non-ferrous metals, and steel. Part of the CLEVELAND HG-4C series of general-purpose high speed steel end mills.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist familiar with milling tool setup and machine operation. Ensure the spindle is fully stopped and the machine is powered down before mounting or removing tooling. Verify shank seating depth and set screw engagement against the Weldon flat before initiating a cut. Always confirm feeds, speeds, and depth-of-cut parameters against the machine capability and workpiece material before running.\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: 1-3\/8 inches (1.3750 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: 3-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Titanium Nitride (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\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HG-4C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal, Steel\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: C33388\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51710579769650,"sku":"C33388","price":70.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e3f6b66cdc1496011b01520842c342a7.jpg?v=1788468406","url":"https:\/\/voomisupply.com\/products\/cleveland-c33388-square-end-mill-5-16-in-4-flute-hss-tin","provider":"Voomi Supply","version":"1.0","type":"link"}