WSM series right-angle welders clamp was developed to meet a wide range of applications, & specialize in aligning materials at 90° for welding purposes. The single copper coated spindle resists weld splatter & its free floating movable jaw automatically adjusts to different work pieces, dimensions & thicknesses. The high quality cast-iron construction keeps this clamp stable & solid for any application. These clamps are tough & versatile, made to simplify the work process. BESSEY. Simply better.