Hi, I am curious what all of your thoughts are on this. I need to machine about 80 aluminum blocks, roughly 3.5” x 4” X 5”. My plan is to just face the top and drive around the sides with a 1” Diameter Long Length endmill. But I am concerned about chatter doing something like this. Has anyone ever used a reduced shank endmill and taken step downs for profiling thicker stock? I’m curious if it would leave lines at each step down or if it would leave a better surface finish than a long length. Unfortunately, I currently only have a 3 axis mill, otherwise I would just face mill each side. Let me know your thoughts, thanks!