Resolution .0005″/0.01mm
Measure depth of small groove and hole.
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: data output cable

3M 28126, Hookit Clean Sanding Disc 900DZ, 5 in 80 J-weight, Die 500LG, 7010290258
Standard Abrasives 875705, MD Mini-Brush, 4-1/2 in x 4 in x 5/8-11 FBO54 16-16 S MED Medium Density, 7010369377 
