Resolution .0005″/0.01mm
Measure diameter of grooves inside deep holes
Buttons: on/off, set, inch/mm, preset(+,-)
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 09321, Adhesive Backed Discs 9321NA, 5 in, 8 Hole 5 pack Medium 80 Grit, 7010311043 