R636.15
    The iconic Pony ¾-inch pipe clamp has become
    America's most popular and widely used pipe clamp fixture design. 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. Use any
    length of ¾ inch -14 NPT pipe, as long as the pipe is seven
    inches longer than your workpiece. Crafted with strong, durable iron casting.
    Clamping face is 1 ¾ inches.
Note: use black steel pipe only. Galvanized coating will cause slipping