Working & Master Gages
The American Petroleum Institute (A.P.I.) established a tightly controlled gaging program to insure that the A.P.I. thread form specifications are met in the manufacturing of oil field equipment, tools and pipe. A.P.I. requires that those manufacturers using the A.P.I. monogram inspect these components with working gages set to A.P.I. master gages. Hemco is licensed by the Institute to use the A.P.I. monogram on all the API Spec 5B, Spec 7-2 and Spec 11B Master gages we manufacture.
HEMCOChrome™ Process:
Increases wear life 4 or more times.
Stops corrosion by salt spray and high humidity
