Produced to German DIN 875-1 Standard, these squares have a square tolerance of 0.005mm and straightness tolerance of 0.0127mm. The 4in square has a 2.18mm blade with 11.18mm base, while the 6in square has a heavy 2.4mm blade and 15.4mm base. Perfect weight in the hand – great to use and accuracy you can rely on.
The best part about these squares is the fact that as you get into the bigger sizes, they retain that immense level of accuracy, without rising to exorbitant prices.
All squares come in sturdy, wooden storage cases.