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 853254, S/C Unitized Wheel, 532, 4 in x 1/4 in x 1/4 in, 7000121888
Insize ISP-A3000E, HORIZONTAL PROFILE PROJECTOR, 12" DIA, with edge detector, 6928640339523 