... Prefer: PSI, Bar, Kgf/cm² Or Kpa. 4. Place the chuck of the gauge onto the tyre ... insure a good seal. 5. Hold in place for about 3-4 seconds, remove and note reading. 6. ... choose the unit you prefer: Mm or in. *Auto power off. Note: 1. Put this Digital Tyre Gauge near ... Reamers, Taps & Dies, Tool Bits, Carbide Inserts, etc (4) Machinery------Metal Working Machines, Woodworking Machines, Shear Bending and ...