The vise body is made from duty cast iron for high hardness and durability. It has simple structure, easy operation, large tightening force and wide adjustment range. Rotary pressure angle is suitable for clamping different shapes of objects. It is suitable for professional clamping of woodworkers, fitters and maintenance workers. U-shaped pliers are a kind of fastening tool, mainly used for clamping, butting, welding and other processing.