Abstract: A work apparatus has a tool, which can be driven in a rotating manner around a rotational axis. The work apparatus has a protective hood extending over at least a part of the periphery of the tool. The protective hood is attached to a housing part of the work apparatus. At least two rotation locks for the protective hood are arranged in different angular positions around the rotational axis. Each rotation lock is formed by virtue of the fact that one of the components of the protective hood and the housing part has a protruding section cooperating with a section of the other component of the protective hood and the housing part and securing the protective hood on the housing part in a positive-locking manner against rotation around the rotational axis, so that the protective hood is prevented from moving with respect to the housing part around the rotational axis.