In article rW_if.585826$_o.44979@attbi_s71,
"Dave Lyon" wrote:

came with no collets only an attachment with a 1/2-inch chuck on it. The
chuck will hold an end mill well enough for cutting slots, but the damn
chuck won't stay on the drawbar.

A drill chuck won't live long if you use it to hold endmills.

Thank you. I kind of figured as much. Now I know.

See my reply to Pete C.

My experience with milling has been limited to using a clamp-on keyway
cutter on shafting except for a very little time using a Bridgeport,
which a _real_ machinist set up.