Pipe Diameter Calipers

The Pocket Rocket is a unique and useful outside diameter caliper that fits right into your pocket (3 1/2" X 7 5/8") 

Just set the backplate against a round object so that is touches at 2 contact points, then swing the movable arm until it also touches.



For more information please visit    http://www.newmantools.com/gauge/pr.htm