Widia 6945716 Square End Mill 0.5 in 4 Flute Solid Carbide

Product Description

The WIDIA 6945716 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. Featuring a 0.5-inch cutting diameter and a 1.5-inch length of cut, this end mill is built to deliver consistent material removal in ferrous and non-ferrous metals. The W421 series design incorporates a variable helix angle of 37/39 degrees, which reduces harmonic vibration and chatter during aggressive cuts. With four right-hand helical flutes and a centercutting geometry, this tool handles both peripheral and plunge milling. It is sized for use in standard 0.5-inch collets or Weldon flat shank holders.

This end mill is suited for production and job-shop machining operations where surface finish and dimensional accuracy matter. The WU20PE carbide grade and variable helix construction make it appropriate for use on CNC machining centers and manual mills working steel, alloy steel, and similar workpiece materials. The Weldon flat shank provides positive drive and prevents pullout under high feed conditions. Typical users include CNC machinists, tool-and-die makers, and precision machine shop technicians working in both prototype and production runs.

Key Features

• Solid carbide construction in WU20PE grade for wear resistance in steel and alloy applications
• Variable helix design at 37/39 degrees reduces chatter and improves surface finish
• Four right-hand helical flutes with centercutting capability for peripheral and plunge operations
• Weldon flat shank prevents tool pullout in high-feed setups
• Single-end configuration with regular length geometry for standard reach applications
• UNSPSC Code 27112803 for procurement system compatibility

Compatibility

Designed for use in standard 0.5-inch end mill holders, collet chucks, and Weldon flat-style set-screw tool holders. Part of the WIDIA W421 series.

Installation Notes

Installation should be performed by a qualified machinist familiar with CNC or manual milling equipment. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the Weldon flat shank fully into the holder and torque the set screw to the holder manufacturer's specification. Verify runout with a dial indicator before initiating a cut, and confirm feed, speed, and depth-of-cut parameters match the workpiece material and machine capability.