{"product_id":"cleveland-c32978-square-end-mill-3-16-in-4-flute-cobalt","title":"Cleveland C32978 Square End Mill 3\/16 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C32978 is a cobalt square end mill built for demanding metal removal in ferrous and high-temperature alloy applications. The double-end design delivers two usable cutting ends, extending tool life on the shop floor. It measures 0.1875 inches in cutting diameter with a 0.5 inch length of cut, a 0.375 inch straight-cylindrical shank with Weldon flat, and a 3.25 inch overall length. The four-flute, right-hand spiral configuration and 30-degree helix angle promote efficient chip evacuation and stable cuts in steel, stainless steel, and high-temperature alloys. A TiCN coating adds surface hardness and heat resistance, helping the tool hold an edge longer under high-feed conditions.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for milling, slotting, and light profiling operations on CNC machining centers and manual knee mills. The HDC-4C series targets hard and abrasive workpiece materials including stainless steel, carbon and alloy steels, and nickel- and titanium-based high-temperature alloys. The centercutting geometry allows direct plunge entry without a pre-drilled pilot hole, giving machinists flexibility in pocket and slot work. It is a regular-length tool, appropriate for standard-reach applications where rigidity is a priority.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDouble-end design provides two cutting ends per tool, reducing per-cut tooling cost\u003c\/li\u003e\n\u003cli\u003eCobalt M42 substrate offers higher red hardness than standard HSS for heat-intensive cuts\u003c\/li\u003e\n\u003cli\u003eTiCN coating increases surface hardness and reduces friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle with spiral flutes improves chip evacuation in steel and stainless\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry supports direct plunge milling without pre-drilling\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute with Weldon flat shank for positive tool holding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard straight-shank tool holders and Weldon-flat side-lock holders accepting a 0.375 inch shank diameter. Primary workpiece materials are high-temperature alloys, stainless steel, and steel as specified by the HDC-4C series application range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the end mill. Tighten the set screw against the Weldon flat to prevent axial pullout under load. Verify runout with a dial indicator after clamping, especially for finishing passes, and follow the tool manufacturer's recommended speeds and feeds for the workpiece material and coating type.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.5 inches (1\/2 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.25 inches (3-1\/4 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: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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\u003eEnd Type\u003c\/strong\u003e: Double End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HDC-4C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\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: C32978\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51700700414258,"sku":"C32978","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4be1f21420ef58c062ab047779db2c54.jpg?v=1788394017","url":"https:\/\/voomisupply.com\/products\/cleveland-c32978-square-end-mill-3-16-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}