Vintage 3 Inch Plumb Bob Unbranded

Vintage unbranded plumb bob measuring just shy of 3-1/2 inches. Clean and in good working condition.

A plumb bob is a simple yet precise tool used to establish a vertical reference line or “plumb.” It consists of a pointed, weighted object—usually made of brass, steel, or lead—attached to a string or cord. When suspended, gravity ensures that the bob hangs perfectly straight, making it essential for tasks such as aligning walls, posts, or doorframes during construction and surveying.