Hertel 84511401 Roughing End Mill 1 in 5 Flute Cobalt

Product Description

The HERTEL 84511401 is a single-end roughing end mill designed for aggressive material removal in metalworking and machining operations. Built from M42 cobalt high-speed steel with a TiAlN coating, this tool handles tough ferrous materials and interrupted cuts where standard HSS tooling falls short. It features a 1 inch cutting diameter, 5 flutes, and a coarse pitch geometry that clears chips efficiently and reduces chatter during heavy roughing passes. With a 2 inch length of cut and 4.5 inch overall length, it suits a range of milling fixtures and workholding setups on vertical and horizontal mills.

This end mill is suited for roughing operations in job shops, tool rooms, and production machining environments. The coarse pitch flute design breaks up chips into smaller segments, lowering cutting forces and heat buildup at the tool-workpiece interface. Right-hand cutting and right-hand flute direction make it compatible with standard CNC and manual milling spindles. The 1 inch shank diameter fits directly into standard CAT, BT, or R8 holders with matching 1 inch bore collets or end mill holders. It is not center-cutting, so it is not intended for plunge entry cuts.

Key Features

• M42 cobalt construction for improved heat and wear resistance over standard M2 HSS
• TiAlN coating extends tool life in dry and semi-dry cutting conditions
• 5-flute coarse pitch geometry promotes aggressive chip evacuation and reduced chatter
• Right-hand cut, right-hand helix for use in standard milling spindles
• 1 inch shank matches 1 inch bore end mill holders and collet chucks
• Not center-cutting — designed for peripheral and side milling, not plunge entry

Compatibility

Designed as a direct-fit roughing end mill for standard 1 inch bore end mill holders, collet chucks, and milling arbors used in CNC machining centers and manual vertical mills.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the spindle before loading or unloading the tool. Seat the shank fully into the holder and torque the retention mechanism according to the holder manufacturer's specifications. Inspect the TiAlN coating and cutting edges for chips or wear before each use, as damaged tooling can cause workpiece defects or tool failure.