![]() Plumb-bobs with a ultra-fine point are advantageous as this makes pin-point precision when marking and transferring points much easier.1. Having a string line that protrudes from the dead centre of your plumb-bob will help to ensure accuracy and balance. ![]() Purchasing a plumb-bob with a screw on cap is advisable as this ensures that the string line is perfectly centred. This is particularly useful as the tool must be steady in order to make take readings and transfer points accurately. These string lines are will not easily stretch, they are water-proof, rot-proof and resistant to mildew.īraided lines also have the added advantage of not spinning (or at least not as much as twisted string lines tend to). The best string line to purchase is a nylon or polyethylene braided type. It can be difficult to tell just by looking or handling the tool, whether or not it is perfectly balanced, but as a general rule of thumb – if your plumb-bob appears to be a symmetrical shape then it will likely be balanced. A perfectly balanced plumb-bob should produce accurate readings, especially when transferring points from level to level. The best plumb-bobs are perfectly balanced and symmetrical. Tips for spotting a top quality plumb-bob ![]()
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