Technical data
Measuring range: 25 – 50 mm
Accuracy: 0,01 mm
Operating temperature: 5 C – 40 C / 41 F – 104 F
Effect of humidity: No matter less than 80% relative humidity
Destination / Application
For precision measurements in the range of 25 to 50 mm
How to use
Preparing for work:
– Clean the measuring surfaces and guide. For this purpose use a cotton cloth. Do not use solvents or acids.
– Check the zero position and, if necessary, adjust the attached key so that the line “0” on the drum coincides with the horizontal scale line.

Measurement method:
– The drum can only be rotated after unlocking the clamp.
– Move the measuring surfaces a little wider than the object being measured.
– Then rotate using the drum to coarsely, then continue to tighten by turning the friction clutch knob.
– Stop tightening when the clutch is engaged, ie the further rotation of the knob will not cause the dru