Adjustable wrench

An adjustable wrench, comprising:

• a wrench head frame forming a U shape and an enclosure having a fastener receiving distal end and a movable jaw receiving proximal end and including a fixed jaw having at least two non-adjacent jaw faces each having a planar fastener engaging surface positioned within the enclosure at the distal end;
• the movable jaw receiving proximal end having two parallel walls, wherein the two non- adjacent jaw faces are not parallel to either of the parallel walls
• a movable jaw movable within and contained within the movable jaw receiving proximal end of the enclosure of the frame and having first and second adjacent jaw faces forming an angle of about 120 degrees relative to each other, each of the first and second movable adjacent jaw faces of the movable jaw having a planar fastener engaging surface;
• a shaft threadably engaged with and passing through the proximal end of the frame and directly connected to the movable jaw, the shaft extending away from the frame and defining a movement line of the movable jaw that is coaxial with the shaft, the shaft rotatable in a first direction to move the movable jaw away from the fixed jaw in the direction of the proximal end of the frame, and rotatable in a second direction opposite to the first direction to move the movable jaw towards the fixed jaw in the direction of the distal end of the frame;
• the movement line passing through one of the planar fastener engaging surface of the fixed jaw face at an angle of one of about 40.9 degrees and 19.1 degrees;
• and
• at least one of the fixed jaw faces and one of the first and second movable adjacent jaw faces of the movable jaw are parallel to each other;
• and
• the movable jaw positioned to push a fastener against the fixed jaw within the fastener receiving distal end when the shaft is rotated in the second direction and the fastener is positioned between the movable jaw and the fixed jaw, two faces of the fixed jaw and the first and second jaw faces of the movable jaw in contact with the fastener when the fastener is pushed.
• whereby the fixed jaw faces form a tapering profile at a leading end of the wrench wherein a smaller fastener is pushed further into the tapering profile and closer to the leading end than a larger fastener.