A tool for use in installing the bead seat band (44) and rim flange (42) of a multiple piece wheel as part of a tire changing or servicing operation that includes a tool body (10) having a corner with a first elongated surface (34) at the corner adapted to engage a rim flange (42) and a bead seat band (44) in an axial direction. The tool includes a second elongated surface (36) at the corner adjacent the first surface (34) at an acute angle to the first surface and adapted to engage the rim flange (42) in an axial direction at a location spaced from the intended point of engagement of the ring flange (42) by the first surface (34). The first and second surfaces (34), (36) define a notch (32) opening away from the body (10) and a tool mounting fixture (26) is connected to the body (10) generally opposite the notch (32).