Applied for woodworking, aquarium fixing, photo frame reinforcement, etc. Pre-drilled mounting holes to allow attachment to work surfaces. > Can hold jobs of different widths at the same time, maximum clamping range is 7.5cm (3 inches). Aluminum alloy construction with steel screws, high hardness, independently adjustable jaws. 90 degree right angle clamp, holds joints at a 90 degree angle, it can also be used at 45 degrees. < p>-This clamp is made of durable aluminum alloy with steel threaded vise screws and two countersunk mounting holes for permanent bench mounting. - Holds joints at a 90 degree angle for secure and precise assembly, whether you're just gluing or using fasteners, this miter style clamp will hold stock firm and square at an exact 90 degree angle -Advanced Design- The design uses a reinforced connection and material on the diagonal connection part, which helps prevent excessive force caused by breaking