I've written about framing squares but they are generally too small to ensure that something like an entire wall or foundation line is square. So there are a couple of other methods that can be used which only require a... read more.
Yes, it is not strictly a tool, but it has become ubiquitous. "K-rail" - California's version of the New Jersey Type 50 concrete barrier is inescapable if you are driving in this state. There are a few reasons for this... read more.
I've used bad and good levels. Some with broken or misadjusted vials, some "I-beam" levels which catch stuff in the flanges and the brand I finally settled on is Stabila. I haven't found anything better. I prefer the 187... read more.
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