Rubi 600g plumb bob 70964

The plumb line uses the law of gravity to indicate that the position of a constructive element is really vertical. The principle on which the plumb line works is very simple: the suspended string with the weight at the bottom should be vertical and perpendicular to any other level plane with which it intersects.


Plumb lines are still one of the most important tools used by the mason in the construction industry today.

RUBI plumb bobs are made of bichromated steel, to ensure good resistance to corrosion, due to the working conditions to which the product will be subjected.

The geometry of the RUBI plumb bob weight maintains, in the most faithful way, one of the most traditional models: the cylindrical one, with a pointed end, as an indicator of the center of gravity. With its 600 gr. weight, the RUBI sinkers are highly reliable and very resistant.

The diabolos, or nuts, of the RUBI sinkers are made of wood and are varnished to give them greater resistance to work in adverse conditions.

The RUBI plumb bob string is made of high quality cotton, to withstand the working conditions on site, 5 meters long.

This range of products, like the rest of the ranges in our catalog is designed to offer the user a time saving and increase efficiency in their work. At RUBI we know how important efficiency and time saving are nowadays, so our product development managers are very focused on these concepts when designing the new tools.

We know how important it is nowadays to be efficient and save time, so our product development managers are very focused on these concepts when designing the new tools.