Abstract: An adjustable spanner wrench comprising of a pair of handle halves, the handle halves including a first handle half and a second handle half, the first handle half being provided with an interior channel along its length. Jaws in the form of two C-shaped arms, the C-shaped arms each having an outboard extent with an aperture therethrough, each C-shaped arm having an inboard extent with an aperture and an associated rivet coupling the outboard ends of the handle halves to the inboard extents of the arms. A pivotable clip having a free end and a pivot end pivotally secured to each outboard end of each C-shaped arm and a semicircular recess at its free end, the semicircular recess adapted to be moved in position concentric with its associated aperture for contacting the groove of the pin received in an aperture.