This instrument has a capacity of 150 mm and able to allow with the vernier a reading to an accuracy of 0.1 mm.
The upper pointed ends (length 20 mm) are used for measuring small objects (teeth, etc...)
The lower ends, with a length of 50 mm, are used for thickness which are difficult to measure with ordinary gauges.
The total length of the instrument is 215 mm.
Net weight: 0,240 kg