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

Dynabrade 59033 3-1/2" Dia. Self-Generated Vacuum Dynorbital-Spirit Random Orbital Sander, 3/32" Orbit
3M 90538, Replacement Pods for Banded Protector, 90538H2-DC, 2 pairs/pack, 10 packs/case, 7010376828
3M 71347, 641WY, 3" X 30", 220 Mesh, Diamond Cloth Belts, 7010534831
3M 85492, Scotch Foil Tape 3311-10A, 2.0 in x 10 yd (50.8 mm x 9,1 m), 7010383663 