{"product_id":"cleveland-c40009-corner-radius-end-mill-1-in-3-flute-pm-538r","title":"Cleveland C40009 Corner Radius End Mill 1 in 3 Flute PM-538R","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C40009 is a corner radius end mill engineered for precision milling operations where a radiused corner profile is required at the cutting edge. With a 1 inch cutting diameter and a 2 inch length of cut, this tool handles moderate-depth slotting, profiling, and peripheral milling passes. The 3-flute geometry balances material removal rate with chip evacuation, making it a practical choice for both ferrous and non-ferrous work. A 42-degree helix angle promotes smooth cutting action and reduces chatter. The bright uncoated finish keeps the tool ready to run as-shipped without additional prep. Machinists and tool-and-die professionals working in job shops and production environments are the primary users of this tool.\u003c\/p\u003e\n\u003cp\u003eThis end mill suits general-purpose milling on vertical and horizontal machining centers as well as manual knee mills. The center-cutting design allows plunge entry into the workpiece, adding versatility for applications that require ramping or helical interpolation. The coarse pitch classification supports higher feed rates in materials where chip packing is a concern. The 1 inch shank diameter matches standard ER and side-lock tool holders commonly found in production shops. The PM-538R series designation identifies it within the Cleveland high-performance end mill family.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCorner radius geometry reduces stress concentration at the cutting edge and extends tool life versus sharp-corner end mills\u003c\/li\u003e\n  \u003cli\u003e3-flute configuration balances chip clearance with rigidity for slotting and profiling cuts\u003c\/li\u003e\n  \u003cli\u003e42-degree helix angle promotes smooth cutting action and minimizes chatter\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting design permits direct plunge entry and helical interpolation\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suitable for use as-shipped; compatible with most cutting fluids and oils\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute direction for standard spindle operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-application end mill for machining centers and manual mills accepting a 1 inch shank diameter. No specific machine model compatibility data was provided in the product input.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following shop tooling procedures. Secure the 1 inch shank fully into a matched tool holder and tighten to holder manufacturer torque specifications before operation. Confirm spindle direction is set to right-hand rotation before engaging the cut. Inspect the corner radius and cutting edges for chips or damage before each use, and replace the tool if edge integrity is compromised.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut (LOC)\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 42 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Coarse\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\u003eCoating\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter Cutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: PM-538R\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: C40009\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51692682051890,"sku":"C40009","price":374.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8811ad696eb89f88efdf17c610882712.jpg?v=1788301127","url":"https:\/\/voomisupply.com\/products\/cleveland-c40009-corner-radius-end-mill-1-in-3-flute-pm-538r","provider":"Voomi Supply","version":"1.0","type":"link"}