Gws 312075 Corner Radius End Mill 1/4 in 5 Flute Carbide

Product Description

The GWS 312075 is a solid carbide corner radius end mill designed for high-performance milling in ferrous and hard metals. Built on the Series 2213 platform, it features a 1/4 inch cutting diameter, a 0.01 inch corner radius, and five flutes with a variable helix and variable index geometry. The AlCr-based FX3 coating supports heat resistance and edge retention in demanding cuts. At 4 inches overall length with a 3/8 inch length of cut and 3/4 inch reach length, this tool is configured for short-reach finish and roughing passes where rigidity and chip evacuation matter.

This end mill is suited for machinists and tooling professionals working in job shops, production facilities, and precision manufacturing environments. Primary workpiece materials include steel, stainless steel, superalloys, and titanium, with secondary suitability for cast iron. The single-end, right-hand cut, right-hand flute configuration is standard for use with end mill holders in CNC vertical and horizontal milling centers. The centercutting design allows plunge entry where the operation requires it.

Key Features

• Solid carbide submicron-grade substrate for rigidity and wear resistance in hard materials
• Variable helix and variable index geometry reduces harmonic chatter during aggressive cuts
• FX3 AlCr coating provides thermal and oxidation resistance for steel and stainless applications
• 0.01 inch corner radius protects the cutting edge and reduces stress concentration at corners
• Five-flute configuration balances chip room with surface finish capability
• Centercutting and extended reach design supports both plunge entry and deeper-reach profiling

Compatibility

Designed for use with standard end mill holders. Primary workpiece materials are steel, stainless steel, superalloys, and titanium. Secondary workpiece material is cast iron. Shank diameter tolerance is h6 for close-fit toolholder interfaces.

Installation Notes

Installation and tool changes must be performed with the machine in a full stop, lockout state per shop safety protocols. Seat the 1/4 inch straight-cylindrical shank fully into the end mill holder and torque the retention system to the holder manufacturer specification. Confirm runout with a dial indicator before initiating a cut. Follow the tool manufacturer feed and speed recommendations for the specific workpiece material and cut depth.