Hertel 75987685 Roughing End Mill 3/4 in 4 Flute Cobalt

Product Description

The HERTEL 75987685 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel and finished with a TiCN coating, it delivers elevated heat and wear resistance compared to standard HSS tooling. The 3/4 inch diameter cutter features 4 flutes arranged in a coarse pitch pattern, which breaks chips efficiently and reduces cutting forces during heavy stock removal passes. At 3 inches length of cut and 5.25 inches overall length, it suits a wide range of milling setups. Licensed machinists and tool-and-die professionals install this type of tooling in CNC and manual milling machines.

This roughing end mill is suited for ferrous and high-temperature alloy materials where a coarse-pitch flute geometry improves chip evacuation and reduces chatter under load. The center-cutting capability allows plunge entry without a pre-drilled starting hole. Right-hand cutting and right-hand flute direction are standard for conventional vertical and horizontal milling setups. The 3/4 inch shank diameter matches common collet and end mill holder sizes found in production and job-shop environments.

Key Features

• M42 cobalt steel construction for elevated heat resistance and tool life in demanding cuts
• TiCN coating reduces friction and improves wear resistance at the cutting edge
• Coarse-pitch, 4-flute geometry promotes efficient chip breaking and evacuation
• Center-cutting design allows direct plunge milling without a pilot hole
• Right-hand cut and right-hand helix for standard milling machine compatibility
• 3 inch length of cut with 3/4 inch shank diameter for rigid tool holding

Compatibility

Designed as a direct-fit roughing end mill for use with standard 3/4 inch collets, end mill holders, and milling chucks on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by qualified machinists. Secure the shank fully in a clean, properly sized collet or end mill holder and torque the retention device per machine manufacturer specifications. Inspect the collet and holder for runout before cutting. Always bring the machine spindle to a full stop before changing or adjusting tooling.