Regal’s plug and ring pipe thread gages are made from hardened tool steel and conform to precise class X tolerances and ANSI Standards. Pipe thread gages for NPT threads are available from 1/16-27 to 6”-8, NPTF and ANPT from 1/16-27 to 1 ½”- 11 1/2”. British Standard Pipe thread gages ( 55⁰ Modified Whitworth) are in stock as well.

A certificate of Accuracy is included with every gage at no charge and a Certificate of Calibration is provided when necessary at a nominal cost. Special pipe thread gages, either plug or ring can be manufactured to your needs.