Hertel 75987800 Roughing End Mill 1-1/4 in Cobalt Ticn

Product Description

The HERTEL 75987800 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 TiCN coating, it handles tough ferrous and non-ferrous workpieces where standard HSS tooling falls short. The coarse pitch, 3-flute geometry produces wide chip gullets that clear material efficiently, reducing heat buildup during heavy cuts. With a 1.25-inch cutting diameter and 3-inch length of cut, this tool suits deep-pocket roughing passes on vertical mills and machining centers. Machinists and tool-and-die professionals specify this grade for interrupted cuts and harder alloys.

This end mill is suited for roughing applications in job shops, maintenance machining environments, and production floors where tool life and metal removal rate matter. The right-hand cut and right-hand flute geometry are standard for conventional milling setups. The centercutting design allows plunge entry, adding flexibility for pocket milling operations without a pre-drilled entry point. A 1.25-inch shank diameter fits standard ER or side-lock holders used on vertical knee mills and CNC machining centers.

Key Features

• M42 cobalt construction for elevated heat and wear resistance over standard M2 HSS
• TiCN coating extends tool life on abrasive and harder workpiece materials
• Coarse pitch, 3-flute design maximizes chip clearance during heavy roughing passes
• Centercutting geometry allows direct plunge entry into workpiece
• Right-hand cut and right-hand flute for standard milling spindle compatibility
• Single-end design with 1.25-inch shank for secure tool holder engagement

Compatibility

Designed as a direct-fit roughing end mill for standard 1.25-inch bore ER collet chucks, side-lock holders, and Weldon-style tool holders used on manual and CNC vertical milling machines.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully powered down and the machine is locked out before inserting or removing the tool. Seat the shank fully into the holder to the recommended minimum engagement depth before torquing the retention mechanism. Inspect the TiCN coating and cutting edges for chips or wear before each use.