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Types of Screwdriver Heads

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Screw heads come in 3 main shapes, 1. Countersunk where the screw head ends flush with the surface, used when working with wood e.g. skirting boards, door frames, panelling, hinges, etc. 2. Round head has a domed head that stands out from the surface used where no countersinking needed, e.g. shelf brackets, curtain rails or ornamental brass.

image: ehow.com

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