Tire changing machine implenent for fitting and removing tires of vehicle wheels

A tire changing machine implement for fitting and removing tires of vehicle wheels, comprising at least one element (2) that is engaged so that it can slide along a rectilinear guiding member (3) and can be inserted between a tire (P) and a vehicle wheel rim (C) that is supported so that it can rotate about at least one rotation axis (A1, A2) on a tire changing machine, the rectilinear guiding member (3) being associable with the tire changing machine substantially at right angles to the axis of rotation (A1, A2) and rotatable about an oscillation axis (9a, 9b) that is substantially parallel to the rotation axis (A1, A2).