This is going to be kind of impossible to answer but I'll give it a shot. I just bought a couple of Dremel 1/16" end mills (1/8" shank) and I've never used anything this small. Considering the size did you find this small stuff surprisingly weak or strong? I'm trying to cut slots for sheaves(sp?) in the jeer bitts and I'm so chicken it will take forever to cut all the slots. Does anyone have any hints as to how deep a cut or feed rates a guy can get away with.