Take the guesswork out of checking new or used casing or tubing.
Know for sure what weight you are using, buying, selling, or transporting.
Carman Model D.C.D. tubing gauge. It gauges tubing 2 1/16 inch to 4 1/2 inch OD The gauge is a convenient compact size only 12" in length and fitting snugly in the leather carrying case. The carrying case has a belt loop for convenience.