[Good Clamping Capacity]:Maximum opening is about 4cm/1.57inch,throat depth is about 4cm/1.57inch,thread diameter is about 5.5mm and max opening size of 4cm/1.57inch [Premium and Reliable]:Locking C Clamp Pliers is made of metal material,which is strong,wear resistant,and higher strength [Adjustable]:To fine tune with the screw at the bottom of the handle.Adjust in small increments [Comfortable Handle]:The handle of the locking pliers adopts comfortable and ergonomic handles,easy for operation [Application]:C pliers ideal for welding,electrical,mechanical,workshop,and home use, Weight: 0.440924524 Pounds, Manufacturer: Zanthicia