6-part telescopic gauge set for internal measurements
measuring range 8 - 150 mm
8 - 12,7 / 12,7 - 19 / 19 - 32 / 32 - 54 / 54 - 90 / 90 - 150 mm
length up to 19 - 32 mm = 100 mm / from 32 - 54 mm = 125 mm
in plastic bag
To measure, insert the telescopic gauge into the hole, it will then center itself.
Fix the screw and then remove the telescopic gauge out of the material to be measured.
Then can you measure the result with a vernier caliper or micrometer !!
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