Laser levels are a fundamental tool for building and construction. These save so much time on jobs and help with millimeter accuracy. Their only fault is if they have been dropped or knocked around, they can show an inaccurate reading, which can ruin your work, costing you money and time.
This video shows you two ways of fault finding your DeWalt laser Level(can be used on any branded laser level)
First checking your line against a spirit level, and secondly only using the level to check the accuracry on itself.
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