Robbjack XG-400-24 Corner Radius End Mill 3/4 in 4 Flute

Product Description

The ROBBJACK XG-400-24 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hard materials. Part of the XG-400 Series, it features an AlTiN coating that improves heat resistance and extends tool life at elevated cutting temperatures. The 3/4 inch diameter cutter has a 1 inch length of cut (LOC) and a corner radius range of 0.028 to 0.030 inches, allowing it to produce smooth corner transitions while reducing stress concentrations in machined parts. With 4 flutes and a fine pitch, this end mill delivers a strong balance of chip evacuation and surface finish. It is centercutting, enabling plunge entry when required.

The XG-400-24 is suited for finish milling, profiling, and contouring operations in CNC machining centers. The stub length configuration keeps the tool stiff and minimizes deflection in tight-tolerance cuts. Its right-hand cutting and right-hand flute direction are standard for conventional CNC vertical and horizontal milling setups. This tool is appropriate for machinists and tool-and-die professionals working in job shop, aerospace, mold, and general precision manufacturing environments.

Key Features

• Solid carbide construction for rigidity and wear resistance
• AlTiN coating for extended tool life in high-temperature cutting applications
• Corner radius of 0.028 to 0.030 inches reduces edge chipping and part stress risers
• 4 flutes with fine pitch for improved surface finish
• Centercutting geometry allows plunge milling entry
• Stub length design minimizes deflection in precision cuts

Compatibility

Designed as an OEM-style replacement and standard fitment for CNC machining centers and manual mills accepting a 3/4 inch shank diameter tool holder.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Secure the 3/4 inch shank in a clean, properly sized collet or end mill holder and torque to the holder manufacturer specification. Verify runout with a dial indicator before beginning a production cut. Always power down the spindle and confirm it has stopped completely before changing tooling.