Metal cutter

A power driven portable head for a sheet metal cutter working on the guillotine principle as set forth above, having two blades pivoted to move relative to one another one of which is fixed to the head the other being mounted to oscillate about the pivot axis during operation of the head, the fixed blade having a leg portion attached to the head and, at its free end a foot extending laterally away from the plane of the leg portion, a straight edge on the foot adjacent the leg portion being formed with a first shearing face displaced laterally away from the plane of the leg portion on its side opposite to that at which the movable blade is pivotally mounted, the movable blade having one end portion adjacent the head arranged to be oscillated about the pivot axis by a portable rotational drive applied to the head, and its other end portion shaped to pass beneath the free end of the leg portion and to terminate in a second shearing face which co-operates with the first shearing face both said first and second shearing faces lying in a plane spaced from but parallel to the plane of the leg portion.