Aerospace - 0.01 to 12.7 mm Digital Probe Indicator Dial Test Gauge - Aerospace dial test gauge has a digital metric indicator with LCD for monitoring surface variation. It has the measurement range of 0-12.7mm and a resolution 0.001mm. It can switch between millimetre and inch. User can change a longer probe head as the requirement. It has an integrated metal structure that is known for stability, durability and high accuracy. Also, the digital dial test gauge has a removable rear cover for using on different magnetic gauge bases.