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.

Dynabrade 64903 Variable Speed Versatility Grinder, 3 hp, 460 V (AC), 3 Phase, 50/60 Hz, 2,000-8,000 SFPM, 1/4"-2" W x 72" L (6-51 mm x 122 cm) Belts
Dynabrade 92102 3" W x 10-11/16" L 80 Grit A/Z DynaCut Belt, 10/pack
Standard Abrasives 33032, Mini Track Cleaning Kit, 7000121830 