Manufactured from die cast aluminium these 90° corner clamps securely position and hold 90° corners, T joints and butt joints together during assembly of drawers, boxes and kitchen cabinets and frames. They allow you to work hands free so that you can drive home your screws or fasteners. They are extremely fast and simple to use and feature a fast action acme thread controlled by a large wing handle allowing you to control the clamping pressure. The aluminium castings are ribbed for extra strength and have a clamping capacity of 22mm between the cam action jaws. Due to the design of the clamp there are no restrictions on the length of the workpiece and as no bars are involved this clamp cannot bow or bend the workpiece.