Looking for other test and measurement tools? We also carry a full selection of bevel sliding, calipers, marking gauges, measuring wheels, micrometers, squares, tape measures, and more. ![]() Once you have attached your string, simply use the spirit level sighting pattern to align your bob with magnetic north then trim the head for a perfect fit. The weight, or bob, is then allowed to swing freely so that it stops precisely below the point at which the string above is fixed. The point of the tool is fixed at the point to be plumbed. Plumb bobs are used to find straight vertical lines and horizontal lines. These plumb bobs are made from solid brass, meaning their rust resistant and durable. With their vertical, solid brass construction and through a hole, these 300g/400g/450g heavy-duty brass plumb bobs (usually used in electrical work) give you a reliable point to start from. Brass Plumb Bob determines the vertical (or plumb) line from the point of suspension to a point on the ground. The plumb consists of a specially designed weight and coarse string made of twisted cotton or nylon threads. 7 inch Heavy Duty Survey Brass Plumb Bob for Surveying Transits Pipe Lasers Description Related products New Grey Replacement Tribrach 4 Total Station Leica. Brass Plumb Bob Item 800-12 BUY NOW Product Description The 800-12 12 Oz. Plumb is the vertical equivalent of a spirit level. Stone masons of the guilds in Europe relied on plumbs and plumb levels in their work, and the importance of these and other tools has carried over symbolically into Freemasonry. weighs 32 oz (907g) Precision machined for perfect balance. Plumb bobs are used by masons, carpenters, and electricians to find a vertical line known as a "plumb" in the ground. Many of the finest brass plumb bobs are from England. SitePro plumb bobs are precision machined for perfect balance and treated for a lasting finish.
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