Kitamura 4XV Cutting Demo on 4140 Steel ft. Iscar Endmill 

Cutting demo on a Kitamura Machinery Mycenter 4XV VMC featuring a 3/8th 5-flute endmill from Iscar Tooling.
-4140 steel hardened to 46-47 rockwell
-1/4" deep pocket
-400 surface feet
-.00135 feed will spiraling in
-.004 per tooth when fully down roughing out the pocket with a .013" step over