Bessey 90 Degree Angle Clamp holds and aligns materials at a 90-degree angle. It automatically adjusts to hold two different sizes of wood together. The jaws automatically adjust within a 4" range, such as 2" x 2", 1" x 3" etc. The die-cast jaws are plastic coated to protect the work piece. The open design allows ample clearance to screw, dowel, or staple material together while gluing. The maximum passage for T-joints is 1 1/8". The BESSEY WS-3+2K is designed to clamp work pieces together at a 90-degree angle. The pivoting jaw adjusts automatically to different thicknesses of wood. Comes standard with a pair of TK-6 table clamps to use when you want to clamp your WS-3+2K-CB to a work surface.