ONQ2001 Features: * Resists strain, heat, and warpage during tacking * Machined swivel nuts, pins, and special chain screws for trouble free assembling of the vise onto the pipe * Pipe Cap.: 1/2 in [Min], 8 in [Max] * Material: Cast Iron * Type: Pipe Chain Vise * Wt.: 15 1/2 lb * Price is for 1 Each