Kennametal Inc.

Elvin Charles Williams

Michael David Saffels

Floyd Samuel Rosenbaum

A cutting tool assembly for milling a rail top, includes a first section and a second section mounted to the first section. Each section includes a plurality of insert-receiving pockets for receiving a plurality of different types of cutting inserts. The plurality of different types of cutting inserts are arranged in a plurality of helical teeth that may be separated by a helical chip flute. In one embodiment, a first type of cutting insert is formed with a radius, R, a second type of cutting insert is formed with a radius, R, and a third type of cutting insert is formed with a radius, R, to perform a milling operation on three different areas of the rail top.

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Pottsboro, TX, United States of America

Elvin Charles Williams