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 03700, Scotch-Brite Cut and Polish Unitized Wheel, CP-UW, 7A Medium, 1 in x 1 in x 3/16 in, 7000045846
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Insize 6315, MICROMETER MEASURING FORCE DETECTOR, 6928640351143
Standard Abrasives 707415, A/O Tapered Cone Point, K-110 80, 7010331324, 100 per case 