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End Mill GASH and Web Thickness

End Mill GASH and WEB Thickness

During the manufacturing of an end mill there are various operations that create the necessary geometries which produce the final product. In this example we are teaching about Gash and Web Thickness. Without careful attention during the manufacturing process this is an area of the end mill that can easily be out of spec resulting in poor tool performance.

Proper Gash & Web Thickness:

The Gash is the “operation of removing material” to create the Web Thickness along the very top of the tool. The Web thickness is the end result. Shown below on a 2FL End Mill (top view) it is the area in Yellow (gash) where it meets the thinnest point of the area in blue (web thickness result).