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.

Norton 66261014792 - 2" Medium Grade Aluminum Oxide Bear-Tex Speed-Lok High Strength Maroon TR Non-Woven Abrasive Disc 160 Each
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Insize 4112-AD136, INDIVIDUAL STEEL GAGE BLOCK, .136", grade 0, 6928640352867
3M 12954, Scotch-Brite Roloc Surface Conditioning Disc, TR, 4 in x NH A CRS, 12954, 7100007009, 100 per case
3M 04258, Scotch Printable Flatback Paper Tape 256, White, 2 in x 60 yd, 6.7 mil,24/Case, 7000123288 