Floor treatment machine

A floor treatment machine comprising a base portion provided with two or more rotatable generally disc-shaped floor-facing work heads which are arranged side by side on the floor and each having a generally vertical axis of rotation, the machine being provided with drive means for rotatably driving the side by side work heads in counter-rotation with respect to one another, and wherein the rotational axes of both side by side work heads are tilted transversely from their respective verticals so that the axes are convergent or divergent in opposite transverse directions thereby causing the work heads to adopt dihedral or dihedral configurations when viewed from a front of the machine, which configurations in use provide propulsion of the machine over the floor surface, wherein the respective work head axes are also both tilted backwards away from the vertical so that both work heads are tilted-up at front end regions thereof and depressed at rear end regions thereof with respect to the floor surface.