Gws 312730 Corner Radius End Mill 3/4 in 7 Flute Carbide

Product Description

The GWS 312730 is a solid carbide corner radius end mill designed for finishing operations in demanding metalworking applications. It features a 3/4-inch (0.750 inch) mill diameter, a 0.09-inch corner radius, and 7 flutes configured in a right-hand helical, close-pitch arrangement. The single-end tool runs at a high helix angle and is built from submicron-grade carbide, delivering the rigidity and edge retention required when cutting steel, stainless steel, superalloys, titanium, and cast iron. Licensed machinists and CNC operators use this tool for precision finishing passes where surface finish and dimensional accuracy are critical.

The 312730 is suited for finishing cuts in ferrous and high-temp alloy materials in both job shop and production environments. With a 1-inch length of cut and a 3-inch overall length, it fits standard end mill holders with a straight cylindrical shank held to an h6 tolerance. The short flute length and close pitch make it a stable choice for applications where chatter control and tight tolerances matter most. Secondary workpiece material compatibility includes cast iron.

Key Features

• 3/4-inch (0.750 inch) mill diameter with matching 3/4-inch straight-cylindrical shank to h6 tolerance
• 0.09-inch corner radius reduces stress concentration and extends tool life at workpiece corners
• 7 flutes in a close-pitch, right-hand helical configuration optimized for finishing
• Submicron solid carbide construction for hardness and wear resistance in tough alloys
• Center-cutting geometry allows plunge entry
• Short flute length type for maximum rigidity in precision finishing passes

Compatibility

Designed for use with standard end mill holders. Primary workpiece materials include steel, stainless steel, superalloys, and titanium; secondary workpiece material is cast iron.

Installation Notes

Install in a compatible end mill holder and confirm runout before cutting. De-energize and lock out the spindle before changing tooling. Follow machine tool manufacturer torque specifications for the collet or holder being used. Verify feed and speed parameters match the workpiece material and cutting depth before engaging the cut.