SPI Dial Bore Gage Set These Dial Bore Gage Sets allow for close tolerance inspection of bores for size, ovality, roundness, and taper. Specifications include... 0.40" - 0.70" Measuring Range 0.0001" Graduations 4" Probe Depth 9 Anvils 1 Spacer Features include... AGD group 2 dial indicator is fully protected by rugged cover to minimize potential shock in the machine shop environment. Various anvil sizes are provided in each set to achieve desired measurement range. Spacers also included for fine adjustment. 2 point measurement with precision wheel guide for self-centering. Precise range setting with plain ring gage or micrometer. Indicator accuracy meets or exceeds federal standards. Furnished in fitted case Indicator includes Certificate of Calibration
