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.
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
