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. Thanks to a versatile design, the GPL 2 can be used for over-the-track applications. 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 Bosch GPL 2 2-Point Self-Leveling Plumb Laser provides users with ease-of-use by design. 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. Solid brass plumb bob with lacquered finish to resist corrosion Ties easily to any string or line Extra hardened steel tip included 1 year limited warranty. 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. The plumb consists of a specially designed weight and coarse string made of twisted cotton or nylon threads. Plumb is the vertical equivalent of a spirit level. Some bobs have pointed tips that can be bent by repeated use or abuse if the point on yours is bent or out of alignment, replace it.Plumb bobs are used by masons, carpenters, and electricians to find a vertical line known as a "plumb" in the ground. Excavation and foundation contractors rely upon the plumb line, and constructing a chimney the tool can indicate whether a flue is running true vertical or veering off plumb. Surveyors sometimes use plumb bobs for lining up points or transferring them. A plumb bob is a weight with a pointed tip on the bottom thats hung from a string, and its used to establish a vertical reference (called a plumb line). The plumb line in one place can be used to sight an object in another - a pipe, for example - for plumb. Once it is hung and still, the top and bottom points can be marked and used as guides. For example, you can locate fixtures or decorations in relation to an object or surface below (or above) using the plumb line. The removable cap allows you to install string. A spirit level will also accomplish those tasks, but some jobs are much more easily done using the tool. They feature a durable, brass-plated body with a lacquer finish to resist corrosion. The plumb bob is useful in establishing vertical for a wall in construction or a doorjamb when hanging a door. The operating principle is straightforward: a sensor weight mounted. Plumb bob units are mounted at the top of the vessel. They offer a cost-efficient solution to measure solid products in tanks or silos continuously. (Note that the line must be hanging free to get an accurate reading.) The Hycontrol PB3000 Series and PB4000 Series are electro-mechanical measuring devices, commonly referred to as plumb bob units. The weight, or bob, is then allowed to swing freely when it stops, the point of the bob is precisely below the point at which the string is fixed above. To use the tool, the string is fixed at the point to be plumbed.
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