"The Wilton Cam Action Drill Press Vise works with a simple push or pull on the center bar know to set the jaw in position. Easy press locking lever cams the jaw ahead 3/32in., exerting a holding pressure that adjusts from 400 to 1100 lbs. Unique top locking lever can be raised or lowered to tighten or loosen against the workpiece. Vise is durable, reliable and made to last. Jaw Capacity in. 3, Handles qty. 1, Jaw Length in. 3, Material Steel, Mount Type Stationary. Center bar knob sets jaw in position Locking lever cams the jaw ahead 3/32in., Holding pressure adjusts from 400-1100 lbs. Base is designed for clear-through drilling applications Jaw depth 1 1/4in. Jaw width 3in. Max. opening capacity 3in."