Yep - I got one of those too BUT beware that type of square isn't always 100% square . . . . test it by placing it along a known straight edge of a piece of board (e.g. manufacturer's edge) and draw a line on the material - then flip the square the other way on the same edge and draw a line as close to/on top of the first line . . . you may be lucky and they match up, or they may diverge slightly. [I have WoodWorkWeb on YouTube to thank for that tip]
Probably OK for most work but a good quality engineer's square is best for precision stuff.
Yep, did that when I got it. Have been bitten before by non square squares, and do not tolerate them. I went through the hackspace workshop and binned 4 of them because they weren't square. This did not make people happy. I then got 3 new squares that are square. Which appeased people.
I have a couple of engineers try squares as well, nothing massively expensive, but they are pretty ok. Good enough for most stuff.
I'm pondering getting one of the Priesser squares from here. (Do a text search for "GG 0"). They are rated to an accuracy of 0.000007m (7µm) over a 0.1m (100mm) distance.
https://www.fine-tools.com/praezisionswinkel.htmlA lot of the other squares out there only claim to be 0.0001m (0.1mm) over the same distance. Do I need that accuracy? Probably not. Is that going to stop me? no.
I want to get a set of gauge blocks at some point to. But I think I'll wait until I have some better tools to go with it.
Yep - I got one of those too BUT beware that type of square isn't always 100% square . . . .
[...]
Probably OK for most work but a good quality engineer's square is best for precision stuff.
This extremely amateur wood-pixie has learned a thing.
Yay! Glad I could pass on my discovery.
J