Pony, 3/4″ pipe clamp, for metalworking, woodworking & frame assembly, mounts on any length 3/4″ black pipe with both ends threaded (pipe not furnished), heavy duty black pipe recommended, no tools are required for assembly, pony clamp fixtures are interchangeable from one pipe length to another, multiple disc clutch design allows a secure hold at any point along the pipe, clamping faces are approximately 1-3/4″ sqin.