Plumb Bob 
Plummet 
Batu Pengukur 
Batu Pemberat 

:  Description:

→ A tool designed for measuring and vertical leveling in construction work.
→ Plumb-bob is usually made of lead or treated iron (with zinc or chromium).
→ It has a cylindrical or prismatic shape with a conical end.
→ This weight is tied to a string from which it hangs, creating a completely vertical line.
→ Helps finding the perfect vertical plane.

:  Features:

�  Plumb bob is used for measuring if the surface is vertical, mainly used for construction work.
�  Used to transfer the position to ground and to check the vertically of ranging poles.
� Plumb bob ideal for use in framing, deck building, plumbing, transit location and construction applications.
� Screw top simplifies attachment of string to center of the plumb.
� One of the quickest and easiest ways to plumb up or down any given point is a plumb bob.