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

Standard Abrasives 863110, A/O Unitized Wheel, 631, 2 in x 1/4 in x 1/4 in, 7000144629
Insize 7332, SPINDLE LIFT KNOB, 6928640312649
Standard Abrasives 877066, Unitized Mounted Point, 821 B42 x 1/8 in, 3M 7100055542 