I have always wanted to learn how to run a lathe and milling machine. I finally have access to a manual knee mill, but there isn't anyone there that can give me guidance (I think the guy uses it as a drill press)...
My first 'project' was to take saw cut aluminum 1-3/4" round bar and face it on both ends yielding parallel ends and 'close' to the same height (2"). All the tooling is random. I did several pieces with an end mill that wasn't carbide and got ok surface finish, but the cutter clogged and needed a very slow feed rate. The next time I got an end mill with removable carbide inserts from the 'pile'. This tool cut great, but seemed to 'dig' in when either entering or leaving the work leaving a bad surface finish.
What end mill should I buy (and where from) for this type operation?