Cleveland C40365 Square End Mill 1 in 3 Flute Powdered Metal

Product Description

The CLEVELAND C40365 is a single-end square end mill engineered for high-performance material removal in professional machining applications. Built from powdered metal, this tool offers a balance of toughness and wear resistance suited for demanding cutting operations. It features a 1-inch mill diameter, a 4-inch length of cut, and a 6.5-inch overall length. The 42-degree helix angle promotes efficient chip evacuation and smooth cutting action. Three spiral flutes provide a strong core while maintaining aggressive cutting geometry. This tool is installed and operated by machinists and CNC programmers working in job shops, manufacturing facilities, and tool rooms.

The C40365 is designed for milling non-ferrous metals and similar materials where powdered metal tooling provides adequate hardness and edge retention. The centercutting design allows for plunge entry directly into the workpiece, expanding its range of operations to include slot milling, side milling, and pocket work. The straight-cylindrical shank with Weldon flat seats securely in standard end mill holders and collet chucks. The right-hand cut and right-hand flute configuration follow conventional CNC and manual milling machine setups.

Key Features

• Centercutting geometry enables direct plunge milling without a pre-drilled entry point
• 42-degree helix angle promotes efficient chip evacuation in non-ferrous applications
• Powdered metal construction delivers improved toughness over standard high-speed steel
• Straight-cylindrical shank with Weldon flat provides positive drive and secure tool retention
• Three spiral flutes balance material removal rate with core rigidity
• Right-hand cut and right-hand flute for standard spindle rotation compatibility

Compatibility

Designed as an OEM-style replacement and standard tooling option for use in conventional and CNC vertical milling machines accepting 1-inch straight-shank end mill holders or collet systems. Part of the Cleveland PM-539R series.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Power down and lock out the machine spindle before inserting or removing end mills. Ensure the Weldon flat is properly aligned with the set screw in the tool holder to prevent slippage under load. Verify runout with a dial indicator after clamping and before initiating a cut.