Adjustable vise objects of different sizes tightly Crafted from aluminum, wear resistant, and impacts resistant Equipped with a piloting hole drilling guide, once the piloting hole has been drilled, it can be flipped open to driving in screws Works on stile from 1-1/2inch to 2inch; Throat Depth: 1-1/2inch; Minimums Opening: 2inch; Maximums Opening Capacity: 4-3/8inch; Jaw Width: 2Inch; Jaw Width: 2-7/16inch. Minimums load capacity: 440lbs Precisely adjust the screw, not easy to slide or deform, Manufacturer: LiRRvb