You’ve found a heavy, pointed brass weight with a string attached in your dad’s old toolbox. That tool is called a plumb bob.
A plumb bob is used in construction and carpentry to establish a true vertical line. Its simple design—just a weighted point suspended from a string—allows gravity to do the work with great precision. But beyond its practical use, your dad’s plumb bob is more than just a tool. It’s a small piece of his working … Read more