Resolution: .0005″/0.01mm.
Measure depth of small groove and hole, also measure depth of tire tread.
Buttons: on/off, zero, inch/mm.
Supplied with zero set surface.
Automatic power off, move the digital unit to turn on power.
Battery CR2032, data output.
Made of stainless steel.

3M 65489, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc DUH5120TRI-10I, 5 inch UH, 120, 7100202873, 10 per pack
Insize VSP-201-R200, ADJUSTABLE SUPPORT, diameter , 2.36"~7.87", 6940561941340
3M 26205, PPS Series 2.0 Lid, Midi/Mini/Micro, 125 Micron Filter, 7100135625 