For corner and T-butt joints, suitable for boards 10 to 22mm thick. For fastening and clamping shelves, picture frames and pieces of furniture. Offers one-hand operation and features spring mechanism to automatically adapt to board thickness and soft, non-slip contact surface, fastening the workpiece firmly in place without making pressure marks. Boards of differing thicknesses can also be clamped together. Clamping Force Up To 500N Clamps at 90° Clamps Internally Plastic Body Turned Spindles Plastic Ergonomic Easy-Push Handle Clamping Force Up To 500N Clamps at 90° Clamps Internally Plastic Body Turned Spindles Plastic Ergonomic Easy-Push Handle