Test Square


The calibration and rework of test squares requires special instruments and techniques. Kunz precision AG is manufacturer of measuring instruments for these calibrations and of ultraprecise test squares – and thus your competent partner for demanding calibrations and rework.

Our best measurement uncertainty for squareness (SQUARE-master method):
± 0.20 µm + (0.20 10-6 L) + (0.02 x A)