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

Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Standard Abrasives 704972, A/O Tapered Cone Point, D-40 180, 7010368594, 100 per case 
