GR-3000 : Small Diameter Sunnen Dial Bore Gauge
Measure extra-small bores from .054" (1.37mm) to .535" (13.59mm). Includes tenth reading indicator, probe retractor and a probe retainer bushing in a reinforced nylon insulating shroud. Set with the Sunnen SCF-502 setting fixture (sold separately). Probe and Transfer Pins sold separately.