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

Dynabrade 78779 1/4" x 3/4"-W164 Dynacut Cotton Fibre Polishing Mounted Point, 120GFX, 10/pack
Dynabrade 95848 Dynabrade Gear Oil
Insize 0010-A35, SOUND LEVEL METER, 35dB~130dB, 6974029777004
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663 