Gws 311681 Corner Radius End Mill 1/2 in 5 Flute Carbide

Product Description

The GWS 311681 is a solid carbide corner radius end mill designed for demanding metal-removal operations in ferrous and high-temperature alloy materials. It features a 1/2 inch cutting diameter, a 2 inch length of cut, and a 0.06 inch corner radius that reduces stress concentration at the cutting edge and extends tool life compared to sharp-corner geometries. The 5-flute, variable helix, variable index configuration balances chip evacuation with surface finish quality, making this tool suitable for both roughing and finishing passes in a single setup. A straight cylindrical shank with h6 tolerance ensures consistent runout in standard end mill holders.

This end mill is suited for machining steel, stainless steel, superalloys, titanium, and cast iron in precision manufacturing environments. Its long-reach, single-end design is appropriate for pocketing, profiling, and slotting operations where extended reach is required. The centercutting geometry allows direct plunge entry. It is intended for use by machinists and CNC programmers working on production and job-shop applications where tool stability and edge integrity in difficult materials are the primary concerns.

Key Features

• 5-flute variable helix and variable index design reduces chatter and improves surface finish in hardened and tough alloys
• 0.06 inch corner radius protects the cutting edge and reduces part stress concentrations at corners
• Solid submicron carbide substrate provides rigidity and wear resistance in steel, stainless, superalloys, titanium, and cast iron
• Centercutting geometry enables direct plunge and ramp entry without a pre-drilled hole
• Right-hand cut, right-hand flute configuration compatible with standard CNC spindle rotation
• Straight cylindrical shank with h6 shank diameter tolerance ensures accurate fitment and low runout in end mill holders

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.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe lockout state before changing tooling. Seat the shank fully into the end mill holder and torque the retention mechanism per the holder manufacturer specification. Verify runout at the cutting tip before beginning a production run, as excessive runout accelerates edge wear and reduces corner radius accuracy.