Review on ➕ Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434 by John Pineda

When I received this I immediately tested it on a Wezu 150mm (6 inch) Precision Wide Base Machinist Engineer Square (DIN 875/2 Deutsche Norm). I've tested the Wezu and it's within spec (better actually). Compared to the Wezu, the Zona is totally non-square - neither the outer nor inner corners are 90 degrees. It's not square enough to be visible to the naked eye .A square's primary purpose is to be a square. If it fails, it fails 100% and nothing else counts. This little 'square' actually can't even come close in the most impressive way be a square. It belongs in the trash. What really shocks me is that the deflection is so great that you can see it with the naked eye - and all for a length of 3-4"! I repeat: more than 3 -4"! Awesome. You have to work really hard to fail in such a short amount of time - so congratulations to Zone on that achievement - I didn't think it was possible.