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 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series with Brake, 25,000RPM, 33424
Air Turbine Tools 2590SVR - 1/4" Angle Hand Tool Series (Long Version, Rear Exhaust), 30,000RPM, 35830
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 25,000RPM, 33422
Air Turbine Tools 310RXSV - 1/4" Router Hand Tool Series, 40,000RPM, 43440 
