Folding wrench assembly

A folding tool assembly comprising:

• a plurality of tools including a first tool having a first head and a first base with a first base surface, a second tool having a second head and a second base, and a third tool having a third head and a third base with a third base surface wherein the first, second and third bases are rotatable along a common axis;
• a lockable hinge including a housing with a pushbutton, the pushbutton having an elongated body with cutouts, wherein the pushbutton is biased between a locked position and an unlocked position to selectively engage the cutouts with the first and third base surfaces;
• and
• wherein each of the plurality of tools is selectively moveable between a closed locked position and an open locked position relative to another of the plurality of tools.