Quote Originally Posted by SCzEngrgGroup View Post
Vibratory finishing with 1/4" green plastic pyramids would work well, if you can tolerate having the sharp edges removed. It will remove all the machining marks, and gently break all the edges, in about an hour, leaving the parts looking like they'd been bead-blasted.
Ray - do you have a company name or link for those green plastic pyramids or do you use the same brand that FuriousGeorge linked to?

Mike