Pipe diameter caliper. Measures pipe sizes up to 16" in diameter Unique design with a swing arm that extends into a 14" ruler 3 Pack of calipers, individually packed Conversion chart for outside to inside diameter, and fractional to decimal, printed on caliper Made of .040” thick clear plastic The Pipe Caliper is a unique outside diameter caliper created and manufactured by Oregon Rule Co. The Pipe Caliper is a tool often useful to Engineers, Draftsmen, Pipe-fitters, Contractors, Carpenters, Plumbers, and related industries. This is a fractional measuring unit, which reads in inches. This Pipe Caliper can measure pipe sizes up to 16" in diameter. A conversion chart printed on the caliper translates measurements of the outside diameter to the nominal interior diameter dimension. Also, there is a conversion chart that reads from fractional to decimal. The swing arm can extend into a 14" long ruler. Units are made from .040" thick clear plastic. This is a 3 pack and each item comes individually packed.

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