Re: Cheap vs expensive collets and nuts for aluminum surface finish?
hy goemon for small er, there is also a type of nut similar to what mactec just shared, but with a smaller outside profile, in order to reduce mass
i rarely cut aluminium, and in metal, usually, if i push, then the tool will start to slide inside the nut; however, for small forces, an er should be just fine
as for surface finish, and so on, general rule : low overhang, check taper contact between collet&chuck, and try to stick to h7 clamping range collets / kindly
Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg