API Thread Monomial Parameters Gages

Monomial Parameters Gages, The high precision gages are more than 20 kinds and widely used for oil fields to measure the monomial parameters of taper, pitch and height thread for pipe, tubing, casing and drill string. It is constituted by the transmission system of rigidity main body and indicator to control and improve the quality of thread. It meets and exceeds the specifications established by the American Petroleum Institute. (A. P. I).