Review on 📏 Highly Accurate Machinist Hardened Precision Engineer Square 50X40mm by Jonathan Unruh

For simple things like this, this is a great little tool. Believe it or not, I have squares that won't square after being folded or worn. It looks really solid and is small enough to fit in many hard-to-reach places. A tip though, it comes with a thin film of anti-rust oil. I recommend that you keep it clean and lightly oiled. Don't let it hang in water or get glue stuck to it (like mine almost did), this will encourage rust.