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 27718, Cubitron II Roloc Durable Edge Disc 984F, 80+, YF-weight, TR, Maroon, 3 in, Die R300V, 7000045176, 200 per case
Insize 1120-3001WL, DIGITAL INSIDE GROOVE CALIPER, 1.97-12"/50-300mm, buit-in wireless, 6928640384844
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613
3M 923, Disc Pad Holder, 3 in 1/4 in Shank, 7000120560
3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182 