Device for collecting drilled material and dust

Device for collecting drilled material and dust produced by drilling tools comprising a flange part having a central axis and arranged to be secured to a housing (23) of the drilling tool, a container for receiving the drilled material and dust having a central axis extending parallel to the central axis of said flange part and having a first end connected to said flange part (1) and a second end spaced axially outwardly from said first end and said container being compressible between the first and second ends in a direction of the central axis thereof towards said first end, an annular sealing element (3) arranged to contact a rotating part of the drilling tool, said sealing element having a ring-shaped part encircling and spaced radially outwardly from the central axis of said flange part and an annular rib projecting radially outwardly from an outside surface of said ring shaped part generally perpendicularly to the central axis of said flange part (1), said annular rib being rotatably supported in a recess in said flange part (1) spaced radially outwardly from the outside surface of said ring-shaped part and said recess being open towards the central axis of said flange part.