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 67050, E-A-R One Touch Pro Adapter Plate 391-0010, 7100077665
3M 43474, Glass Cloth Tape 3615, White, 1 in x 36 yd, 7 mil, 7000048876
Standard Abrasives 707415, A/O Tapered Cone Point, K-110 80, 7010331324, 100 per case 