The classic #50 Pony ? Pipe Clamp is America?s most popular and widely used pipe clamp fixture design. It is ideal for metalworking woodworking and frame assembly. Mounts on any length ? black pipe with both ends threaded. Our original steel multiple-disc-clutch design allows a secure hold and instant adjustment at any point along the pipe without fear of slipping or pipe crushing. The Classic #50 Pony ? Pipe Clamp uses any length of 3/4-inch pipe as long as the pipe is seven inches longer than your workpiece. Crafted with strong durable iron casting. Clamping face is 1 3/4 inches. Black pipe sold separately.