Value Collection C3SRH-4005 End Mill 5/8 in 3 Flute Cobalt

Product Description

The VALUE COLLECTION C3SRH-4005 is a single-end roughing finishing end mill designed for aggressive material removal followed by a finish pass in a single tool. Built from M42 cobalt high-speed steel, it handles tough ferrous and stainless materials where standard HSS tools lose their edge under heat. The 5/8 inch cutting diameter, 60-degree helix angle, and three right-hand flutes work together to shear material efficiently while reducing vibration. The bright uncoated finish suits applications where coating is not required or where re-sharpening is anticipated. This tool is installed and run by machinists and tool-and-die professionals on vertical mills, knee mills, and CNC machining centers.

This end mill is suited for milling operations in ferrous metals, alloy steels, and harder materials where M42 cobalt provides a thermal and hardness advantage over M2 HSS. The 1-5/8 inch length of cut accommodates moderate-depth slotting and peripheral milling. The Weldon flat shank provides positive drive retention in set-screw holders, reducing pullout risk under heavy cuts. It is used in job shops, maintenance machining, and production environments requiring a reliable general-purpose roughing-finishing tool.

Key Features

• M42 cobalt construction for improved heat resistance and edge retention over standard HSS
• 60-degree helix angle promotes smooth chip evacuation and reduced cutting force
• Three flutes balance chip clearance and surface finish in a single pass
• Weldon flat shank ensures secure set-screw drive and minimizes pullout
• Center-cutting design allows direct plunge entry without a pre-drilled hole
• Bright uncoated finish compatible with re-sharpening and regrinding

Compatibility

Designed as an OEM-style replacement or direct-use end mill for standard 5/8 inch collet chucks, end mill holders, and Weldon flat set-screw holders used on vertical mills and CNC machining centers.

Installation Notes

Installation is performed by a machinist or tooling technician. Ensure the machine spindle is fully stopped and locked before changing tooling. Seat the Weldon flat against the set screw in the holder and torque the set screw per the holder manufacturer specification to prevent pullout under load. Verify runout with a dial indicator before beginning a cut, as excessive runout will accelerate edge wear and degrade surface finish.