Bessey Tools WS-3+2K 90 Degree Angle Clamp for T Joints and Mitered Corners SIZABLE OPENINGS: You can accommodate 2 3/16 inches (55 Millimeters) of wood on each corner, with a 1 3/16 inch (30 Millimeter) opening available for driving fasteners for T Joints MOUNTING: Keep this clamp secured to the edge of your workbench with the two included TK6 table clamps DIE-CAST, PLASTIC COATED BODY allows a firm clamp without marring your work materials, resulting in perfect, gap-free miter joints ERGONOMIC HANDLE allows you to tighten and loosen this grip with minimal strain on your joints, even while its clamped to a table A PLASTIC INSERT is included, which you can use to snug the jaws of the clamp while its not in use