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 463-000-TRI-4, Pro Grade Precision Comfort & Performance Large Sanding Tool, 3.7 in x 7 in, 7010416697
Insize ISY-700-90028, ACRYLIC SLIDING SUPPORT PLATE, 6940561980851
3M 16023, PPS Cup & Collar, Large, 7000000642
Standard Abrasives 708756, A/O Tapered Cone Point, K-110 120, 7100139933, 100 per case 