An adapter assembly is provided for converting a first oscillating motion from an oscillating tool to a second oscillating motion at a wheel that is useful for applying polymers and other films to doors, windows, and other surfaces or for applying rubber gaskets around a window during installation of the window. The adapter assembly is provided with an adapter that tapers in the anterior direction when attached to an oscillating tool. An axle is provided at the distal end of the adapter and attaches to a concentrically aligned bearing within the wheel.