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, for calipers with c=.630″), data output cable

Air Turbine Tools 2545SSVF - 1/4" Angle Hand Tool Series (Short Version, Front Exhaust), 40,000 RPM, 35548
Dynabrade 51926 Vane Set (4pk)
Dynabrade 54705 Rotor/Vane Set
3M 27260, Ultra Durable 5 inch Power Sanding Discs, Universal Hole, 100 grit, 7100188473, 5 per pack
Dynabrade 57113 Rotor/Vane Set
3M 16615, Accuspray Atomizing Head, Blue, 1.2 mm, 7100086837 (4 Nozzle/Kit)
3M 45095, Roloc Disc Pad TR, Medium 2 in 1/4-20 Internal, 7000045282
Dynabrade 14230 Rubber Drive Wheel 