These gauges adjust to cover all sizes of R, RX, and BX ring grooves.

The standard gauge measures groove diameters from 2.6-13" and groove widths from 0.375-1.5". Optional rails extend the range of diameters from 13-37". The face groove gauges accurately measure the ring groove diameter and width at the critical sealing point of the face groove. Gauge indicators show actual deviation from a preset master dimension. The BX-1000 can be used to measure straight or tapered groove diameters, shallow bores, and hole locations. Contact points included are .188". The BXG-1000 measures widths of straight or tapered grooves and includes .072" contact points.