Features:
Precision-ground guide bar for smooth, rapid movement.
Locking-clamp mechanism for tight, accurate holding.
3" model features a side-actuated clamping mechanism and 1/2" slots for mounting.
4" and 6" models have a top-actuated clamp and 1/2" lugs on each side.
Replaceable jaws are ground flat.
6" model has a smooth, stepped jaw.