Resolution: .0005″/0.01mm.
Measure internal and external diameter of drum brakes.
Buttons: on/off, zero, inch/mm.
Automatic power off, move the digital unit to turn on power.
Battery CR2032. Data output.
Made of stainless steel.
Optional accessory: data output cable

Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Insize QMS-CALIBRATION, CALIBRATION PLATE for QMS,
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956 