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 16065, PPS Mix Ratio Inserts, Standard (22 fl oz), 7000120485
Insize 7231, SCRIBER, 6928640320071
Dynabrade 51926 Vane Set (4pk) 