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).

Insize QMS-A450-U, LARGE SIZE QUICK MEASUREMENT SYSTEMS,
3M 03126, General Purpose Sanding Sponge CP040-6P, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100101532, 6/pack
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 98272 1/2" NPT Female Plug
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686 