Gws 122893 Corner Radius End Mill 1/4 in 7 Flute Carbide

Product Description

The GWS 122893 is a solid carbide corner radius end mill engineered for finishing operations in demanding machining environments. It features a 1/4 inch diameter, a 1-1/8 inch length of cut, and a 0.06 inch corner radius across 7 flutes. The extra-long 3 inch overall length and variable helix design reduce chatter and improve surface finish in deep-cavity and extended-reach applications. This is a single-end, centercutting tool intended for use by machinists and tool-and-die professionals working on CNC milling centers.

This end mill is suited for finishing passes on steel, stainless steel, cast iron, superalloys, titanium, and hard materials. Its submicron carbide grade and close pitch configuration make it appropriate for high-precision work where tight tolerances and fine surface finishes are required. The straight-cylindrical shank with h6 tolerance mounts directly into standard end mill holders. Typical applications include contouring, profiling, and slot finishing in both production and job-shop environments.

Key Features

• 7-flute geometry increases feed rates and improves surface finish on finishing passes
• Variable helix and variable index design reduce harmonic vibration and chatter
• 0.06 inch corner radius protects cutting edge and produces consistent corner geometry
• Extra-long 3 inch OAL with 1-1/8 inch LOC supports deep-cavity and extended-reach milling
• Centercutting capability allows plunge entry without a pre-drilled hole
• Submicron solid carbide grade rated for steel, cast iron, superalloys, titanium, and hard materials

Compatibility

Designed for use with standard end mill holders accepting a 1/4 inch straight-cylindrical shank with h6 tolerance. Primary workpiece materials include steel, cast iron, superalloys, and titanium; secondary material is stainless steel.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and machine power isolated per shop lockout/tagout procedures. Seat the shank fully into the end mill holder and torque the retention screw according to the holder manufacturer specification. Inspect the cutting edges and corner radius for chips or damage before each use. Do not exceed the tool manufacturer recommended speeds and feeds for the workpiece material being machined.