Single spindle design of the WS-3+2K is quick & easy to use. Free floating jaw allows you to clamp dissimilar thickness/width work pieces together at a perfect 90°. The die-cast jaws are plastic coated to protect work piece and it's open design allows ample clearance to screw, dowel or staple material together while gluing process. The included pair of TK-6 table-clamps makes it easy to clamp your WS-3+2K clamp to your work surface. BESSEY. Simply better.