Resolution: .0005″/0.01mm.
Measure diameter of grooves inside bores.
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 45031, High Intensity Prismatic Reflective Digital Sheeting 3930UDS, White, 36 in x 50 yd, 1 Roll/Case, 7100282388
Standard Abrasives 713276, Aluminum Oxide Handy Roll, P180 J-weight, 2 in x 50 yd, 7100037246
Dynabrade 51865 1.0 hp Trim Router (Complete), 20,000 RPM, 1/4 Collet 