A machine tool (1), in particular a drill hammer or chisel hammer, is described having a housing (5) having a grip region (7, 27) and an assembly (9) including an impact mechanism (11) and a drive device (13), the assembly (9) being arranged substantially within the housing (5) and being arranged movably relative to the housing (5). A center of gravity (15) of the assembly (9) is arranged at a distance from an impact axis (19). A sealing device (87) is provided to restrict an air flow between the assembly (9) and the housing (5), wherein the sealing device (87) is connected to the assembly (9) and to the housing (5) and encompasses the assembly (9) circumferentially relative to a vertical direction (Y) of the machine tool (1).