Sometimes customers ask us how to improve machining efficiency in their end milling operations. Specifically, when making full slots or pockets. Typical end mills in those applications normally utilize full width of cut, but only partial length of cut, low feeds and some conservative speed parameters. We recommend trochoidal milling for those operations. Trochoidal milling utilizes full length of cut, it leverages chip thinning, so radial engagement is very light and it utilizes high cutting speeds. The result, is a much more efficient cut, longer tool life, ultimately lower cost per part.