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 78350 6" Dia. x 1/2" W x 1" Center Hole, 8A Medium, S/C DynaBrite Deburring Convolute Wheel, 2/box 
