Resolution .0005″/0.01mm
Measure diameter of grooves inside deep holes
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: data output cable

3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 27311, Ultra Durable 5 inch Power Sanding Discs, Universal Hole, 150 grit, 7100187641, 10 per pack 