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, for calipers with c=.630″), data output cable

3M 58248, Cushion-Mount Plus Plate Mounting Tape E1060, White, 18 in x 50 ft, 60 mil, 7000029013
Dynabrade 78579 1/4" Dia. x 1" W x 1/8" Center Hole, 60 Grit, 100/pack
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613 