Hertel 06822241 Roughing End Mill 3/4 in 4 Flute Cobalt

Product Description

The HERTEL 06822241 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 Titanium Nitride (TiN) coating, this tool handles tough ferrous and non-ferrous materials where standard HSS cutters would wear prematurely. It runs a 3/4 inch cutting diameter with a 3/4 inch length of cut, four flutes, and a right-hand cutting and flute direction. The TiN coating reduces friction and extends tool life in high-cycle production environments. Machinists and tool-and-die professionals rely on this style of roughing end mill for high metal removal rate passes before finish milling.

This end mill is suited for use on manual knee mills, CNC vertical machining centers, and CNC milling machines in both job shop and production settings. The regular-length geometry and 3/4 inch shank diameter make it a practical choice for standard tool holders, collet chucks, and end mill holders. It is center-cutting, allowing plunge entry into the workpiece without a pre-drilled start hole. Typical applications include roughing slots, pockets, and profiles in steel alloys, stainless, and other hard materials where high chip load capacity is required.

Key Features

• M42 cobalt HSS construction for elevated heat and wear resistance
• Titanium Nitride (TiN) coating reduces friction and extends cutting life
• 4-flute design supports high chip load and efficient material removal
• Center-cutting capability allows direct plunge entry
• Right-hand cut and right-hand flute direction for standard spindle setups
• Regular length geometry fits standard end mill holders and collet chucks

Compatibility

Designed as an OEM-style replacement or stock tooling option for standard 3/4 inch end mill holders, collet chucks, and milling tool holders accepting a 3/4 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the shank fully into the tool holder to the manufacturer-recommended engagement depth and torque set screws to the tool holder specification. Verify runout with a dial indicator before beginning a cut, and confirm feed rate and spindle speed are appropriate for the workpiece material and depth of cut.