Patent ID: 6962523

Claim:
A power tool including: a head portion having a shroud attached thereto for surrounding part of an operative element, the operative element being provided for treating a face of a work piece, a body portion including an electric motor for driving said operative element, propelling means having a rotary impeller mounted within a hollow housing, the housing having an air inlet and an air outlet, operative to induce air to flow along at least one induction passage; a chamber formed at least in part between the impeller and at least one internal surface of the housing, wherein said motor, the air inlet and the impeller are arranged substantially coaxial and relatively positioned so that the inducted air is drawn over the motor to cool the motor before entering the air inlet and the chamber, the inducted air is pressurised in the chamber and transferred by exhaust means through the shroud to a working zone of the tool; the working zone including the operative element and the face of the work piece, wherein the shroud is formed with an opening to expose a part of the operative element, the shroud being adjustable relative to the head portion to adjust a position of the opening relative to the head position.