The construction of a multifunctional, conductive brushes with carbon nanotube bristles grafted on fiber handles, is discussed. Various tasks performed by these brushes such as cleaning of nanoparticles from narrow spaces, coating of the inside holes, and selective chemical adsorption are described. these nanotube bristles can also be chemically functionalized for selective removal of heavy metal ions. The nanotube brushes provide a high level of contact redundancy, and could be miniaturized for coupling in MEMS devices.