Hertel 62852843 Roughing End Mill 3/4 in 4 Flute Cobalt

Product Description

The HERTEL 62852843 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and finished with a TiAlN coating, it delivers heat resistance and edge retention in demanding cutting applications. The mill measures 3/4 inches in diameter with a 4-inch length of cut and an overall length of 6.25 inches. Four spiral flutes in a coarse pitch configuration generate the aggressive chip-clearing action that defines roughing geometry. Right-hand cutting and right-hand flute direction are standard. This tool is installed and used by machinists and tool-and-die professionals in metal-cutting environments.

This end mill is suited for roughing passes in ferrous and non-ferrous materials where stock removal rate is the priority over surface finish. The coarse pitch reduces cutting forces and helps prevent chip packing in deep-pocket and side-milling operations. The TiAlN coating extends tool life at elevated cutting temperatures, making it a practical choice for production milling on CNC machining centers and manual knee mills alike. It is not center-cutting, so plunge milling is not an appropriate use for this tool.

Key Features

• M42 cobalt construction for improved heat and wear resistance over standard M2 HSS
• TiAlN coating extends tool life in high-temperature cutting conditions
• Coarse pitch roughing geometry maximizes material removal rate
• 4-inch length of cut supports deep-pocket and long-reach milling applications
• Right-hand spiral flutes with right-hand cutting direction for standard milling setups
• Non-center-cutting design — not suitable for direct plunge entry

Compatibility

Designed as a standard 3/4-inch shank roughing end mill compatible with milling chucks, collet holders, and end mill holders accepting a 3/4-inch straight shank on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by qualified machinists following shop safety procedures. Power down and lock out the spindle before mounting or removing the tool. Seat the shank fully in the holder and torque the retention hardware to the tool holder specification. Confirm runout with a dial indicator before beginning the cut — excessive runout accelerates edge wear on roughing geometry.