TOPEX digital caliper with measuring range 150 mm and measurement accuracy 0.02 mm is one of the basic measuring tools. It allows to measure depth, inside and outside dimensions with values given in milimetres or inches. tightening screw that locks the slider aids in making measurements and big display is for clear reading. Function of zero shift to any position is an additional feature. Accordance with European safety standards is confirmed with CE certificate. TOPEX brand is oriented towards DIY enthusiasts.