Hertel 41120601 Roughing End Mill 3/8 in 4 Flute Cobalt

Product Description

The HERTEL 41120601 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel and coated with TiCN, it handles harder workpiece materials and elevated cutting temperatures better than standard HSS tooling. The coarse-pitch flute geometry breaks chips efficiently and reduces chatter during heavy cuts. With a 3/8 inch diameter, 4 flutes, and a 3/4 inch length of cut, it is well suited for slotting, profiling, and roughing passes on a CNC machining center or manual knee mill. Licensed machinists and tool-and-die professionals are the primary users of this type of cutting tool.

This end mill fits standard 3/8 inch toolholders and collet chucks common in job shop and production machining environments. The right-hand cutting and right-hand flute direction make it compatible with conventional vertical and horizontal milling setups. Its regular-length overall dimension of 2.5 inches keeps deflection low when working in moderate-depth pockets or along profiled edges. It is a centercutting tool, meaning it can be plunged directly into the workpiece when the operation calls for it.

Key Features

• M42 cobalt construction for improved heat and wear resistance over standard M2 HSS
• TiCN coating reduces friction and extends tool life in ferrous and hard materials
• Coarse pitch roughing geometry breaks chips and lowers cutting forces on heavy passes
• Centercutting design allows direct plunge entry into the workpiece
• Right-hand cut and right-hand helix for use in standard milling spindles
• Single-end configuration; 3/8 inch shank matches the cutter diameter for direct collet mounting

Compatibility

Designed as a direct-fit replacement or standard addition for any setup using 3/8 inch diameter single-end roughing end mills with a 3/8 inch straight shank in ER collet chucks, end mill holders, or side-lock holders.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholding torque and runout specifications. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Confirm proper shank engagement depth in the holder before tightening. Inspect the cutting edges for chips or coating damage before mounting.