{"product_id":"cleveland-c52178-square-end-mill-0-375-in-4-flute-cobalt","title":"Cleveland C52178 Square End Mill 0.375 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C52178 is a cobalt square end mill designed for demanding material removal in ferrous and high-temperature alloy applications. Built from M42 cobalt high-speed steel, this double-end tool delivers extended tool life over standard HSS when cutting stainless steel, alloy steel, and high-temperature alloys. It runs a 0.375-inch cutting diameter with a 0.75-inch length of cut and features four spiral flutes with a 30-degree helix angle. The right-hand cut and right-hand flute geometry is the standard configuration for vertical machining centers and manual knee mills. Centercutting capability allows plunge entry without a pre-drilled pilot hole.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for milling operations in job shops, production machining environments, and maintenance facilities where stainless steel and high-temp alloys are common workpiece materials. The HDC-4C series is a general-purpose cobalt line sized for 3\/8-inch collets and tool holders. The straight cylindrical shank with Weldon flat accommodates both standard ER collet systems and side-lock holders, making it a flexible choice across common spindle setups. Regular-length geometry keeps the tool stiff and minimizes deflection in typical face, slot, and peripheral milling passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt steel construction for improved heat and wear resistance over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eDouble-end design provides two usable cutting ends, extending service life per tool\u003c\/li\u003e\n\u003cli\u003e30-degree helix spiral flute promotes chip evacuation and reduces cutting forces\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge milling without pre-drilling\u003c\/li\u003e\n\u003cli\u003eWeldon flat on straight shank compatible with side-lock and collet-style holders\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for use with cutting fluids or dry cutting depending on application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in 3\/8-inch ER collets, Weldon side-lock holders, or equivalent tool holding systems on vertical mills, CNC machining centers, and manual knee mills. Primary workpiece materials include high-temperature alloys, stainless steel, and steel (Material Codes M, P, S).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully powered down and the machine is in a safe lockout state before changing tooling. Seat the Weldon flat against the set screw in side-lock holders to prevent axial pullout under load. Verify runout with a dial indicator after installation and before cutting to protect both the tool and the workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.75 inches (3\/4 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Cobalt (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eDouble End\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HDC-4C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: High Temperature Alloy, Stainless Steel, 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: C52178\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51720519385394,"sku":"C52178","price":60.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c23d882fd9efda8254e88888805a74dc.jpg?v=1788565427","url":"https:\/\/voomisupply.com\/products\/cleveland-c52178-square-end-mill-0-375-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}