This 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.
The "READ HERE" edge indicates the diameter
Only semi-circle exposure or less is required tp indicate diameters.
Pipe sizes to 16" are displayed as well as fractional inch diameters from 1/16" to 16".
Included for easy reference is a fraction/decimal chart and a nominal size pipe diameter table.
When the swing arm is at the 180 degree position you also have a 14" ruler.
For use by engineers, draftsmens, pipefitters, contractors, carpenters, sheetmetal fabricators, inspectors, woodworkers, plumbers, dtc. Anyone who needs to measure various diamters.
Three different models are available in selected materials for offer diverse appearance and durability.
