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

3M 26199, PPS Series 2.0 Lid, Standard/Large, 125 Micron Filter, 7100135628
Insize 4168-2E, STEEL STANDARD BALLS, 9/64", 6940561981407
Standard Abrasives 877066, Unitized Mounted Point, 821 B42 x 1/8 in, 3M 7100055542 