Ball Gage Set on a Key Ring
Gap Gage Set
Gap Gauge Set

The balls on this gage set range from 2.0 mm ( 0.07874" ) to 3.4 mm ( 0.1260" ) in increments on 0.1 mm. They are used by an auto manufacturer to check the fit of auto doors. These gages are also referred to as "Gap Gages." or "Gap Gauges"

Each gage with a stem costs $39.00.