Our other sites:

Plumb-bob maintenance and care

Shop for Plumb-Bobs

Keep your plumb-bob clean

plumb bob Plumb bob and case, plumb bobs, marking out tool wonkee donkee tools DIY guide how to use a plumb bob Plumb-bobs may become dirty or caked in mortar if used frequently on a building site. Excessive dirt or debris on a plumb-bob may make it unbalanced and less accurate, so it is recommended that you keep yours clean by wiping it down with a cloth after use.

Handle with care

Plumb bob, plumb bob Plumb bob and case, plumb bobs, marking out tool wonkee donkee tools DIY guide how to use a plumb bob Plumb-bobs are sturdy little tools though they may become chipped or dented by a day’s work on site. As a result, it is advisable to handle them with care, as disfigurements to the plumb-bob’s shape may make it unbalanced and therefore less accurate.

Storing your plumb-bob

Plumb bob and case, plumb bobs, marking out tool wonkee donkee tools DIY guide how to use a plumb bob Some plumb-bobs are sold with a special protective case in which they can be stored between uses. Though, as with many traditional tools, a worker would often make his or her own case in which to store their tool and these are sometimes highly decorative.

How to replace the string on a plumb-bob

Line string, plumb bob, plumb line, wonkee donkee tools DIY guide how to use a plumb bob From time to time, you may need to replace the string on a plumb-bob. For a long working life, choosing a synthetic string such as one made from nylon or polyethylene is advised as these are waterproof, rot-proof and will not easily stretch.
plumb bob, plumb bobs, plummets weights, marking out tools, wonkee donkee tools, DIY guide, how to use a plumb bob

Step 1 – Unscrew cap and feed string through hole

If your plumb-bob does not have a screw cap then simply tie the string around the hole at the top. Try and get it positioned as centrally as you can.

If your plumb-bob does have a screw cap then unscrew it and feed the string through the hole (from the outside).

plumb bob, plumb bobs, plummets weights, marking out tools, wonkee donkee tools, DIY guide, how to use a plumb bob

Step 2 – Tie knot

Tie a knot in the string on the side that will sit inside the cap. The knot needs to be large enough that it will not slip back through the hole.

plumb bob, plumb bobs, plummets weights, marking out tools, wonkee donkee tools, DIY guide, how to use a plumb bob

Step 3 – Screw on cap

Pull the excess string back through until the knot stops it going any further and then screw the cap back on.

Your plumb-bob is now ready to use.