Cleveland C40348 Corner Radius End Mill 3/4 in 3 Flute Ticn

Product Description

The CLEVELAND C40348 is a single-end corner radius end mill engineered for finishing operations in non-ferrous metal applications. Built from powdered metal (PM) with a TiCN PVD coating, this tool delivers wear resistance and edge retention on materials such as aluminum, brass, and copper alloys. It measures 3/4 inches in cutting diameter with a 1-5/8 inches length of cut and a 0.09 inches corner radius that reduces stress concentrations at pocket floors and shoulders. With a 3.875 inches overall length and a 3/4 inches Weldon flat shank, the C40348 is designed to seat securely in compatible toolholders. Licensed machinists and CNC operators in production and job-shop environments are the primary installers of this tool.

This end mill is suited for finishing passes in milling applications involving non-ferrous metals. The high-helix, three-flute geometry promotes chip evacuation and surface finish quality at elevated feed rates. The coarse pitch and right-hand spiral fluting support consistent cutting action in both conventional and climb milling setups. The Weldon flat shank provides positive drive and reduces the risk of pull-out in standard side-lock toolholders. The PM-539R series designation indicates Cleveland's powdered metal substrate line, which offers improved toughness compared to standard high-speed steel.

Key Features

• 0.09 inches corner radius reduces notching and stress at workpiece corners during finishing passes
• TiCN PVD coating improves surface hardness and wear resistance on non-ferrous workpiece materials
• Powdered metal substrate provides enhanced toughness and grindability over conventional HSS
• 3-flute, high-helix geometry promotes efficient chip evacuation in non-ferrous applications
• Weldon flat shank ensures positive engagement in side-lock and set-screw toolholders
• Centercutting design allows plunge entry without a pre-drilled hole

Compatibility

Designed for use with standard Weldon flat toolholders accepting a 3/4 inches shank diameter. Intended for non-ferrous metal workpiece materials. Part of the Cleveland PM-539R series.

Installation Notes

This tool is installed by machinists and CNC operators in milling machines or machining centers. Ensure the spindle is fully powered down and the machine is in a safe state before changing tooling. Seat the Weldon flat fully against the set screw in the toolholder before tightening to manufacturer torque specifications for the holder. Confirm runout with a dial indicator after installation to protect edge life and surface finish quality.