Gws 125651 Corner Radius End Mill 1/4 in 3 Flute Carbide

Product Description

The GWS 125651 is a single-end, corner radius end mill ground from submicron-grade solid carbide and designed for material removal in non-ferrous metal applications. It carries a 1/4-inch cutting diameter with a 0.0100-inch corner radius, a 3-flute right-hand spiral geometry, and an extra-long 3-inch overall length that supports extended-reach milling operations. The bright/uncoated finish keeps the tool suited to aluminum, copper, brass, and similar non-ferrous materials where coatings can cause built-up edge. Licensed machinists and CNC setup technicians are the primary installers of this tooling.

This end mill fits standard 1/4-inch straight-cylindrical end mill toolholders and is classified under Series 1020 for coarse-pitch roughing work in non-ferrous metals. The 1-1/8-inch length of cut and 37-degree high-helix angle promote chip evacuation and surface finish quality in deep-cavity and slotting operations. Its centercutting capability allows direct plunge entry. Typical use cases include aerospace aluminum pocketing, mold-making in non-ferrous stock, and production CNC profiling where extended reach past a workpiece shoulder is required.

Key Features

• Submicron-grade solid carbide blank for wear resistance in non-ferrous cutting
• 0.0100-inch corner radius reduces stress concentration at the cutting edge and improves corner durability
• 37-degree high-helix angle promotes aggressive chip evacuation during slotting and profiling
• Extra-long 3-inch OAL with 1-1/8-inch length of cut for extended-reach operations
• Centercutting design allows direct plunge milling without a pre-drilled entry hole
• Bright/uncoated finish optimized for aluminum and other non-ferrous metals where coating adhesion is a concern

Compatibility

Designed for use with standard end mill toolholders accepting a 1/4-inch straight-cylindrical shank with h6 shank diameter tolerance. Intended for non-ferrous metal workpiece materials per the manufacturer primary workpiece material classification.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom technician. The machine spindle must be fully stopped and locked out before mounting or removing the tool from its holder. Verify toolholder runout is within specification before engaging the cut, as excessive runout accelerates edge wear on carbide tooling. Do not exceed the recommended depth of cut for the material being machined.