Value Collection 723-5503 Roughing End Mill Cobalt M42

Product Description

The VALUE COLLECTION 723-5503 is a single-end roughing end mill designed for aggressive material removal in milling operations. Manufactured from M42 cobalt high-speed steel with a bright, uncoated finish, this tool handles tough ferrous and non-ferrous materials where standard HSS tooling falls short. The coarse pitch, 3-flute geometry evacuates chips efficiently during heavy roughing passes, reducing heat buildup and tool deflection. With a 0.25-inch cutting diameter and a 0.625-inch length of cut, this end mill suits applications where controlled depth and precise radial engagement are required. It is sized for use in standard milling machines, CNC machining centers, and manual knee mills.

This roughing end mill is intended for use in machine shops, tool and die operations, and production environments where bulk stock removal is the primary objective. The 3/8-inch shank diameter and 2.4375-inch overall length make it compatible with standard collet chucks and end mill holders found in both manual and CNC setups. Right-hand cutting and right-hand flute direction are standard for conventional climb and conventional milling passes on typical vertical milling setups.

Key Features

• M42 cobalt construction for elevated heat and wear resistance over standard M2 HSS
• Coarse pitch, 3-flute roughing geometry promotes aggressive chip evacuation and reduced cutting load
• Bright, uncoated finish suitable for use with standard cutting fluids and oils
• Right-hand cut and right-hand helix for conventional milling machine compatibility
• Single-end design with 3/8-inch shank for secure collet or end mill holder retention
• Non-centercutting — requires a pre-drilled hole or side-entry approach for plunge starts

Compatibility

Designed as a general-purpose roughing end mill for use in standard 3/8-inch collet chucks and end mill holders on vertical milling machines and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is powered down before loading or removing the tool from the holder. Secure the shank fully within the collet or end mill holder to the recommended engagement depth per the holder manufacturer. Because this tool is non-centercutting, do not attempt direct plunge cuts — use a ramping or side-entry approach instead.