speed or torque i'm not too sure which one. I've got a milwalkee screw impact that i use on the job occasionally. Pretty much you can dial it in properly so you seat screws without stripping them so I'd say torque. Speed wouldn't matter much in that senario would it???
Sherman, Tx
<font color=red>Come Awn yall...Let's go to LUCHENBACH, TEXAS!!!</font color=red>