DESCRIPTION
A Plumb Bob is a simple but precise vertical alignment tool used in construction, surveying, carpentry, and masonry to establish a straight vertical reference line (“plumb”). It consists of a pointed weight, usually made from brass, steel, or cast iron, suspended on a string or cord. When the plumb bob hangs freely, gravity pulls it straight down, allowing workers to check or establish verticality for walls, posts, or other structures. Its pointed tip helps accurately mark the exact alignment point, while the weight ensures steadiness even in light wind or movement.
PRODUCT SPECIFICATION
Material: Solid brass, steel, cast iron, or die-cast zinc
Weight: 200g, 225g, 300g, 450g (8 oz to 16 oz)
Length: 150mm to 220 mm (6 to 8.5 inches)
Finish: Polished lacquered brass or powder-coated steel
Additional Features: Screw top or thru-hole for string attachment, replaceable hardened steel tip
Plumb Line Length: Usually supplied with 3m to 5m nylon or polyester string
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