Cleveland C40359 Corner Radius End Mill 1 in 3 Flute Ticn

Product Description

The CLEVELAND C40359 is a single-end, centercutting corner radius end mill engineered for finishing operations in non-ferrous metal applications. Built from powdered metal (PM) and coated with a PVD-applied TiCN finish, it delivers wear resistance and edge retention on materials such as aluminum, brass, and copper alloys. The tool measures 1 inch in diameter with a 0.12 inch corner radius, a 2 inch length of cut, and a 4.5 inch overall length. The 3-flute, right-hand spiral geometry runs at a high helix angle of 42 degrees, promoting efficient chip evacuation and a smooth surface finish. Shank diameter is 1 inch with a Weldon flat configuration for secure toolholder engagement.

This end mill is suited for CNC milling operations where a controlled corner radius profile is required on non-ferrous workpieces. Its short-length, coarse-pitch design makes it a practical choice for finishing passes in production environments. The centercutting design allows plunge entry, adding versatility in contour and pocket milling applications. It is intended for use with a compatible Weldon-flat toolholder and is classified under the PM-539R series.

Key Features

• Powdered metal construction with TiCN (PVD) coating for extended tool life in non-ferrous applications
• 0.12 inch corner radius reduces stress concentrations and improves surface finish at workpiece edges
• 42-degree high helix angle promotes aggressive chip evacuation and reduced cutting heat
• Centercutting design permits direct plunge entry without a pilot hole
• Weldon flat shank provides positive drive and prevents slippage in the toolholder
• Single-end, right-hand cutting and flute direction for standard CNC spindle use

Compatibility

Designed for use with Weldon-flat toolholders. Intended for finishing operations on non-ferrous metal workpieces. Part of the Cleveland PM-539R series.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a locked-out state per applicable machine safety procedures. Verify toolholder bore size matches the 1 inch shank diameter before installation and torque the Weldon flat set screw to the toolholder manufacturer specification. Confirm runout after installation before beginning a cutting pass. Do not exceed the recommended speeds and feeds for the workpiece material and coating type.