Cleveland C40007 Corner Radius End Mill 3/4 in 3 Flute

Product Description

The CLEVELAND C40007 is a corner radius end mill engineered for precision milling operations in metal fabrication and machining environments. Built to PM-538R series specifications, it features a 3/4-inch cutting diameter, 1-5/8-inch length of cut (LOC), and a 3-flute spiral design with a 42-degree helix angle. The bright, uncoated finish makes it suitable for a wide range of ferrous and non-ferrous workpiece materials. The center-cutting geometry allows plunge entry as well as conventional peripheral milling. This tool is sized for use in CNC machining centers and manual knee mills by skilled machinists and tooling professionals.

The C40007 is appropriate for general-purpose corner radius milling in production and job-shop settings. The coarse pitch and right-hand cutting and flute direction support efficient chip evacuation during slotting, profiling, and ramping operations. The 3/4-inch shank diameter provides rigid tool holding in standard ER, CAT, or similar toolholders. It is well-suited to both roughing and semi-finishing passes where corner integrity and tool life matter.

Key Features

• 3/4-inch cutting diameter with matching 3/4-inch shank for balanced rigidity
• 1-5/8-inch length of cut (LOC) for moderate-depth milling passes
• 3-flute spiral geometry with 42-degree helix angle for efficient chip flow
• Center-cutting design allows direct plunge entry without pre-drilling
• Right-hand cut and right-hand flute direction for standard spindle use
• Bright, uncoated finish compatible with a broad range of workpiece materials
• Coarse pitch for positive chip clearance in slotting and profiling applications

Compatibility

Designed as an OEM-style replacement or direct substitute for standard 3/4-inch shank corner radius end mills used in CNC machining centers and manual milling machines accepting 3/4-inch straight-shank toolholders.

Installation Notes

Installation should be performed by a qualified machinist following established toolroom safety practices. Ensure the machine spindle is fully stopped and locked out before loading or removing the tool from the holder. Verify runout with a dial indicator after seating the shank to minimize vibration and premature edge wear. Follow the machine manufacturer and tooling guidelines for appropriate feed rates and speeds based on workpiece material.