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10294 |
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| These mains tester screwdrivers contain a neon indicator in the clear plastic handle which lights up when the point of the screwdriver is touched on voltages between 220-250V and your thumb is forming an earth contact with the metal stud set into the top of the handle. The mains tester has a plastic insulating sleeve on the screwdriver blade and is available in two sizes - 140mm overall length (55mm blade length) or 190mm overall length (100mm blade length). The 140mm tester is fitted with a metal pocket clip. |
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