{"product_id":"cleveland-c32589-square-end-mill-3-8-in-4-flute-cobalt","title":"Cleveland C32589 Square End Mill 3\/8 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C32589 is a 4-flute cobalt square end mill designed for high-performance milling in demanding shop environments. Built from M42 cobalt high-speed steel and finished with a TiN (titanium nitride) coating, this tool delivers extended wear resistance and heat tolerance compared to standard HSS tooling. The cutter measures 0.375 inches in diameter with a 0.750-inch length of cut and a 2.5-inch overall length. It features a right-hand cut, right-hand spiral flute geometry at a 30-degree helix angle, and is centercutting, allowing plunge entry. Machinists and tool-and-die professionals in job shops and production environments are the primary users.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for milling operations on high-temperature alloys, stainless steel, and carbon and alloy steels. The Series HGC-4C designation identifies it as a regular-length, straight-shank tool with a Weldon flat option, making it compatible with standard end mill holders and set-screw style toolholders. The 4-flute configuration provides a good balance of chip clearance and surface finish, making it appropriate for slotting, profiling, and finishing cuts in ferrous materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt steel construction for improved red hardness and tool life over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003eTiN finish reduces friction and extends cutting edge life in ferrous applications\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle promotes smooth chip evacuation and reduces chatter\u003c\/li\u003e\n\u003cli\u003eCentercutting design allows direct plunge milling without a pre-drilled pilot hole\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute for use in standard spindle-forward milling setups\u003c\/li\u003e\n\u003cli\u003eWeldon flat shank option provides positive drive and prevents pullout in heavy cuts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard end mill holders, collet chucks, and Weldon-style set-screw holders accepting a 0.375-inch shank diameter. Rated for milling high-temperature alloys, stainless steel, and steel workpiece materials per material codes M, P, and S.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Secure the shank to the full recommended engagement depth in the toolholder and torque the set screw against the Weldon flat before operation. Verify spindle runout with a dial indicator before starting a cut, as excessive runout accelerates edge wear on cobalt tooling. Always use appropriate cutting fluid or mist coolant when machining stainless steel or high-temperature alloys to manage heat buildup at the cutting edge.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3\/4 inch (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 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 (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN\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\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HGC-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: C32589\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51690347299122,"sku":"C32589","price":53.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/150151572510a18259585928f92bbda6.jpg?v=1788269193","url":"https:\/\/voomisupply.com\/products\/cleveland-c32589-square-end-mill-3-8-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}