Have the perfect vise for your workshop with this Machinists' Bench Vise with Swivel Base, 4" Jaw Width, 6-1/2" Jaw Opening, 3-1/2" Throat Depth (10021) from Wilton. It has hardened steel jaws, and its replaceable inserts are machine serrated for a safe, sure grip under maximum torque. The extra deep throat design gives you more working room where it counts, while the enclosed design keeps lubrication in and contaminants out for smooth operation. Designed to handle the most demanding clamping applications, it's anchored at at the rear to provide straight line pull and even pressure resulting in greater durability.