Resolution 0.01mm/.0005″, 0.001mm/0.00005″, 0.0005mm/.00002″.
Repeatability 0.5um. Measuring force 5-10N.
Flatness of measuring faces 0.3um. Parallelism of measuring faces 0.5um.
Ratchet stop
Non-rotating spindle, suitable for cylinders.
Quick measurement: one turn of sleeve or ratchet stop makes 2mm spindle feed.
Carbide measuring faces

Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
Insize 4120-52N, METRIC THREAD RING GAGE, NO GO, M52x5, 6928640341939
Dynabrade 51301 .5 hp Straight-Line Die Grinder 