Resolution .00005″/0.001mm.
Measure the groove diameter of shafts and keyways.
Non-rotating spindle.
Button function: on/off, set, inch/mm, ABS/INC
Data output. LR44 battery, automatic power off.
Ratchet stop.
Supplied with setting standards (except 0-1″/0-25mm).

3M 11840, 3M Cubitron 3 Flap Disc 1169F, 80+, T29-Conical, 4-1/2 in x 7/8 in, 10 ea/Case, 7100380288 