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

3M 74815, Cushion-Mount Plus Plate Mounting Tape E1320, Yellow, 18 in x 25 yd, 20 mil, 7000042751
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663 