BG174236498 In my view, this inaccuracy is not good quality. I had two items that were both inaccurate like this. The square is meant to be square, otherwise it's just a very very expensive ruler or tape measure.

Gönder

BG364416371 Maybe a silly question but… can you calibrate it by loosening the screws or do they just pull it back to the same location when tightened?

Gönder

mattnelson84 This version the screws little effect, its already locked in to same position sorry.

Gönder

mattnelson84 for it's application it is passable as made for ruling lines BT dragging, but yes if also ruled a line conventionally (along rulers edge) then its not square so then not good quality and would get off lines. also got the Venko 760mm T ruler much better quality.

Gönder

Laszlo Thesquare you have to calibrate yourself, just loosen the 4 screws, adjust and tighten them back.

Gönder