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 80510, Roloc Disc 777F, P120 YF-weight, TR, 1 in, Die R100N, 7000045622
Norton 66623335427, 2" Dia Vortex Rapid Prep Quick-Change Non-Woven Abrasive Disc, Medium Grade, 50 Each
Dynabrade 90438 2" W x 30" L Medium NWN DynaBrite Premium Belt, 10/pack
Dynabrade 78124 3/4" W x 20-1/2" L Coarse NWN DynaBrite Belt, 10/pack
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
Dynabrade 78316 2" Dia. x 1" W x 1/4" Shank, Medium, NWN DynaBrite Wheel, 10/pack
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack 
