Resolution: .0005″/0.01mm.
Measure hole center distance in the same or offset planes.
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.

3M 45099, Roloc Disc Pad TR, Medium 1-1/2 in 1/4-20 Internal, 7000045280
Insize 6144, ACCESSORY SET FOR DIGITAL CALIPERS, 6928640380839
3M 15041, Scotch Electrical Shielding Tape 24, 1 in x 15 ft (25 mm x 4,6 m), 7000031348 