Wilton 21400#745 Mechanics Vise Jaw width 5" Jaw opening 5 1/4" Throat depth 3 3/4" Pipe jaw 1/4" - 2 1/2" Straight line design reduces thread wear and increases clamping power Replaceable jaw inserts and pipe jaws with unbreakable spindle and nut Double lockdown base swivels 360 degrees