Patent ID: 7114824

Claim:
A multi-functional tool comprising: a tool handle unit including a handle body member having a fitting portion; and a first tool head unit removably attachable to said handle unit; said first head unit having a first fitting member provided to matingly engage said fitting portion of said handle unit so as to removably secure said first head unit to said handle unit; wherein said first head unit is an adjustable jaw wrench comprising: a head body member defining a stationary jaw; a movable jaw reciprocally mounted to said head body member in alignment with said stationary jaw, said movable jaw including a gear rack portion; a drive mechanism mounted to said head body member of said first head unit, said drive mechanism being operably coupled to said movable jaw for moving said movable jaw relative to said stationary jaw, said drive mechanism including a worm gear rotatably mounted in said head body, said worm gear engaging said gear rack portion of said movable jaw; and a power source driving said drive mechanism, said power source disposed in one of said handle unit and said first head unit.