Checking your square's squareness - Paul Sellers' Blog

Provided you have a perfectly square square, it’s a simple matter to check a square for square. Most people starting out may not have that luxury. So, you bought a tidy looking square from a carboot sale or flea market or you received one from granddad’s garage tools. How will you know if it’s got the … Checking your square’s squareness Read More »...

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