The plumb bob is a classic construction tool designed to establish a true vertical reference, or “plumb,” using the force of gravity. It consists of a pointed weight suspended from a string, which naturally aligns straight down, making it ideal for checking the verticality of walls, door frames, columns, and pipes. Simple yet highly reliable, the plumb bob remains a go-to tool for precise vertical alignment in masonry, carpentry, and surveying tasks.
Plumb-Bob
A plumb bob is a gravity-based tool used to establish accurate vertical alignment in construction projects.







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