A printer head cleaner can include a housing and a plunger coupled to the housing. The plunger can include a bit retainer and a pusher. The bit retainer is configured to retain a bit. The pusher can advance the bit with respect to the housing and/or rotate the bit when pressure is applied to the plunger. In some implementations, the housing defines one or more registration features that can register a printer head with respect to the housing so that the bit is guided while advancing into the nozzle of a printer head.