RCBS swager.
Henry at Budget shooter supply can probably get these.
I picked mine up on ee for $30 shipped..
[youtube]SdkA7vDeaes[/youtube]
I don't know where I got it but I use a countersink bit like this one, since it's just cutting brass it hasn't dulled and takes very little effort to cut out a crimp
(not used in a drill, 1-2 turns by hand with minimal pressure is LOTS)
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