A planer comprising a body comprising an aperture formed within it to accommodate a deflector; the body being mounted on a shoe, the shoe having an aperture formed through it; a cutting drum rotatably mounted within a recess formed by a wall within the body; a motor mounted within the body to rotatingly drive the cutting drum; at least one cutting blade mounted on the periphery of the drum; an airflow generator which creates an air flow for entraining debris created by the cutting action of the blade; directional means which directs the airflow; and a removable deflector for guiding the airflow and entrained debris from within the body to outside of the body; wherein there is a pivotal flap which is capable of being pivoted between a first position where the entrance is closed and a second position where it is open.