[pippin88]

Originally posted by jaydee116
Thats not helping the breaking problem. I usually go .03125 on the first pass and .125 on the rest. No matter how big your mill is you don't want to go to deep or the endmill will break. Unfortunatly the endmill is the weak link not the mill in most cases. I can easily break a 3/16" endmill on my tiny desktop CNC mill.

WTF. I can do much larger passes than that easy (unless you are talking in inches which ChrioN is not).
1mm passes are like a hot knife through butter.