Promax US007067 Square End Mill 5/16 in 4 Flute Carbide

Product Description

The PROMAX US007067 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. It features a 5/16 inch cutting diameter with a 1-1/4 inch length of cut, a 3 inch overall length, and a straight cylindrical 5/16 inch shank. The four-flute, right-hand spiral configuration is paired with a variable 35/38 degree helix angle and variable index geometry, which reduces harmonic vibration during aggressive cuts. The PowerLayer coating extends tool life by improving lubricity and heat resistance at the cutting edge. Micrograin carbide substrate supports tight tolerances and consistent edge integrity across production runs.

This end mill is suited for milling slots, pockets, and profiles in CNC machining centers and manual knee mills. The single-end, center-cutting design allows plunge entry as well as conventional and climb milling passes. Standard length configuration fits the majority of common fixturing setups without requiring extended-reach toolholders. It is appropriate for use in job shops, tool rooms, and production environments where dimensional accuracy and surface finish are priorities.

Key Features

• Variable 35/38 degree helix with variable index geometry reduces chatter and vibration
• PowerLayer coating improves wear resistance and heat management at the cutting edge
• Micrograin solid carbide substrate for tight tolerances and long edge life
• Center-cutting design allows direct plunge entry into workpiece
• Right-hand cut, right-hand flute spiral for standard CNC and manual mill spindles
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit in toolholders

Compatibility

Designed as a standard straight-shank end mill compatible with ER collet chucks, end mill holders, and similar toolholding systems that accept a 5/16 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully powered down and the machine is in a safe state before inserting or removing tooling. Seat the shank to the recommended insertion depth specified by the toolholder manufacturer and torque the collet nut or set screw per the toolholder specification. Confirm runout with a dial indicator before beginning a production cut.