4″ ADAPTER WEAR GAUGE (API/EI-1584 & 1004)

WEAR GAUGE IS SPECIALLY DESIGNED TO DETECT WEAR ON 4″ EI/API ADAPTERS. ADAPTERS WEAR IN THREE AREAS, THE TOP, THE OUTSIDE DIAMETER AND ON THE CLAMPING SURFACE. THIS SIMPLE INSTRUMENT ADDS THE WEAR ON THESE SURFACES INTO ONE MEASUREMENT, AND PROVIDES A SIMPLE INDICATION THAT THE ADAPTER NEEDS TO BE REPLACED.