Gws 120954 Square End Mill 1/8 in 5 Flute Solid Carbide

Product Description

The GWS 120954 is a solid carbide square end mill designed for precision milling in demanding metal-cutting and machining applications. Built on the Series 1035 platform, it features a 1/8 inch cutting diameter, a 1/2 inch length of cut, and five flutes with a 38-degree variable helix geometry. The nACRo coating improves heat resistance and wear performance at elevated cutting speeds. At 1-1/2 inches overall length with a 1/8 inch shank diameter, it is sized for use in CNC machining centers and manual mills where tight-tolerance work in hardened or abrasive materials is required. Machinists and tooling professionals are the primary installers of this style of cutting tool.

This end mill is suited for high-speed finishing and semi-finishing passes in ferrous and non-ferrous materials where surface finish and dimensional accuracy are critical. The five-flute, variable-helix configuration reduces chatter and improves chip evacuation compared to standard fixed-helix designs. It is a single-end, right-hand cut tool with an upcut flute direction and a submicron carbide grade substrate, making it appropriate for production environments running tight tolerances on CNC machining centers.

Key Features

• Solid carbide submicron-grade substrate for rigidity and wear resistance in demanding cuts
• Five-flute variable helix at 38 degrees reduces vibration and chatter during milling
• nACRo coating provides elevated thermal and oxidation resistance for longer tool life
• 1/8 inch cutting diameter with 1/2 inch length of cut for precision work in confined features
• Right-hand cut, upcut flute direction, single-end configuration
• Standard length profile with square shank for direct collet or chuck mounting

Compatibility

Designed as an OEM-style replacement or direct-fit cutting tool for CNC machining centers and manual mills accepting a 1/8 inch straight shank end mill in standard collet or end mill holder configurations.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully and evenly in a clean, undamaged collet or end mill holder, and torque the retention nut per the holder specification. Verify runout with a dial indicator before initiating a cut, especially when working to tight tolerances.