Value Collection 723-5739 Roughing End Mill 1/2 in Cobalt

Product Description

The VALUE COLLECTION 723-5739 is a single-end cobalt roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel, it handles tough ferrous and non-ferrous materials with consistent edge integrity under heat. The 1/2 inch diameter, 4-flute configuration provides a balance of chip evacuation and surface contact, making it suitable for roughing passes where feed rate and material removal rate take priority over finish quality. The bright/uncoated finish is standard for cobalt tooling used across a broad range of workpiece materials. This tool is installed in CNC machining centers, knee mills, and manual milling machines by machinists and tool-and-die professionals.

This roughing end mill is suited for use in job shops, tool rooms, and production machining environments where roughing passes precede finishing operations. The 3 inch length of cut and 5 inch overall length make it appropriate for moderate-depth side milling and slotting. Right-hand cutting and right-hand flute direction are standard for conventional milling setups. The non-centercutting design means it is not intended for plunge-entry cuts and should be entered from the side or through a pre-drilled hole.

Key Features

• M42 cobalt construction for elevated heat and wear resistance in demanding cuts
• 4-flute single-end geometry optimized for roughing passes and high material removal rates
• 1/2 inch diameter with matching 1/2 inch shank fits standard ER and R8 collet systems
• 3 inch length of cut supports moderate-depth side milling operations
• Bright/uncoated finish compatible with cutting fluids and dry machining across common workpiece materials
• Non-centercutting design requires side entry or pre-drilled starting point

Compatibility

Designed as a standard 1/2 inch shank roughing end mill compatible with CNC and manual milling machines equipped with 1/2 inch collets or end mill holders accepting right-hand cutting tools.

Installation Notes

Installation is performed by machinists using a collet chuck, end mill holder, or equivalent toolholding system rated for the shank diameter. Ensure the machine spindle is fully stopped and locked out before inserting or removing tooling. Verify collet condition and holder runout before engaging the workpiece, as excessive runout accelerates edge wear on cobalt tooling. This tool is not designed for plunge milling — always enter the cut from the periphery or an existing bore.