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Pozidriv versus Phillips Screw Heads? Answered

Thank you for some excellent lessons. In the UK (and I guess Europe too) Pozidriv screws are very popular (much less cam out, and can be carried to the work on the driver). They look very similar to Phillips but are not and you can mess up the screws or bits using the wrong ones, so best to know the difference. Pozidriv screws have four markings between the four arms of the main cross. Pozidriv drivers have small lobes between the four main lobes. Google has pictures.