Precisely machined and balanced bobs have pointed tips, and can be made of brass, steel, or other materials, including plastic. (Masons prefer nylon because it stands up better over time to the dampness that comes with the trade.) At one end of the string the weight is affixed. Brass Plumb Bob has solid-brass construction for durability and rust resistance. Screw top simplifies attaching string to center of plumb. Replaceable, hardened steel tip is long-lasting. The plumb consists of a specially designed weight and coarse string made of twisted cotton or nylon threads. Brass Plumb Bob Line decorated with hand engraving DM910 (39) 69.99 50 Calibur BMG bullet Plumb Bob Grampsdesigns (909) 9.95 Antique brass plumb bob sagefromage (285) 71. Polished-lacquer, solid-brass construction is durable and rust resistant. In a sense, the plumb bob is the vertical equivalent of the line level. You don’t have to be a physics whiz to understand that a string suspended with a weight at the bottom will be both vertical and perpendicular to any level plane through which it passes. The plumb bob or plumb line employs the law of gravity to establish what is “plumb” (that is, what is exactly vertical, or true). As is so often the case, it isn’t how fancy the tool is, but how well you use it. For most home toolboxes, I recommend having a single bob that weighs a few ounces. Includes a hardened steel point with ASA thread. (It’s also thought that, in tandem, they used flooded ditches to determine levels.) Plumb bobs may weigh as little as an ounce or as much as several pounds, depending upon the application. Our Hardware, Tools & Sealants category offers a great selection of Measuring and Leveling. precision brass plumb bob is machined for perfect balance and lacquered for a lasting finish. 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 908BR 8 oz. Features Solid brass plumb bob with lacquered. Evidence suggests that Egyptian architects used plumb bob-like tools to establish verticals in constructing the pyramids. EMPIRE has earned the trust of the construction trades by delivering a broad range of innovative products.
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