Abstract: A sanding machine comprising: a housing; a pad base; a pad; a suspension for suspending the pad base from the housing, the suspension being formed of elastic material; a fastener for detachably fixing the pad base to the suspension; a sand paper clamp having a fixing portion for providing a sand paper over the lower surface of the pad; a fastener for detachably securing the pad to the pad base; and a restraint for restraining distortional rotation of the suspension when the pad base is secured to the suspension by the fastener. The restraint also serves as a position adjustor for aligning the attaching portion of the sand paper clamp and the pad base with the suspension.