US Patent 7350393 Hand tool for wires

A hand tool includes two levers pivotally coupled together at a middle portion with an axle, and each having a handle end for being held by users, and a carrier end having a channel formed between two plates, a bar is engaged into the channel and secured between the plates of each of the levers and includes a spring-biased projection, one or more supporting members and one or more tool devices may be changeably attached to the levers and include a slot for receiving the bar and a depression for receiving the spring-biased projection, and for changeably attaching the supporting members and the tool devices to the levers without additional fasteners and driving tools.