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 14197, Roloc Disc Pad TP, Medium 2 in 1/4-20 Internal, 7000119311
3M 9450, Disc Pad Holder 917, 7 in x 5/16 in x 3/8 in 5/8-11 Internal, 7000028549
3M 27711, Cubitron II Roloc Durable Edge Disc 984F, 60+, YF-weight, TR, Maroon, 4914834, 4 in, Die R400BB, 7100006570, 100 per case 
