Resolution: .0005″/0.01mm.
Measure groove diameter.
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: depth stop (part no. 6143), data output cable

Insize 4121-3C2, AMERICAN STANDARD THREAD RING GAGE, GO, 3/8-24UNF, 6928640359262
3M 26432, PPS Series 2.0 Sealing Plug, 96 plugs per pack, 7100135627
3M 64799, Scotch-Brite EXL Unitized Mounted Point, B121 x 1/8 in 8A CRS, 3M 7010329841 