What is it?
A plumb bob, which has a pointed tip at the bottom, is a weight that is suspended from a string and used as a vertical reference line, or plumb line. It is essentially the equivalent of a water level and has the same function as a level. Who uses it and why? Used by builders to measure the exact vertical alignment in structures. What materials can they be used on? Anything that has a horizontal surface. How is it used? The weight is hung off the string and then you can see if the vertical line is adjacent to the surface. It essentially acts like a level. What are their distinctive features? Acts as an alternate for a level. Made of brass, is a weight hung by a string. Vertical line up can tell if a horizontal surface is adjacent. Where can I buy it? Home Depot- http://www.homedepot.com/p/Empire-8-oz-Brass-Plumb-Bob-908BR/100113390 $8.98 How much does it cost? $4.85-18.15 |