Screwdrivers for electrical work have slim shafts varying in length from about 2in. to 8in. (60-200mm). The handle is rubber or plastic for insulation, and the upper part of the shaft is sometimes insulated also. Never use an electricians screwdriver with a cracked or broken handle.
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It is vital to know when disc-brake pads need replacing. Some makers state a minimum safe thickn...