I bought a Square Cut to use with my circular saw.
Just before making the first cut I decided to check the angle, and unfortunately the “right angle” came out not to be exact. At first I became very frustrated and was ready to throw it away on the upper shelve. But, as several cuts had to be made at the time, I solved the problem by sticking several pieces of scotch to the appropriate side.
Today I visited the store where I bought it in order to check another Square Cut but it was impossible because of the package.
It's a pity one can't use it right from the store.
Nevertheless I will keep it in my bag.