Much More Magic Commu Polisher
Much More continues its quest to clean the World’s comms with the release of their Magic Commu Polisher, which is a too that cleans and polishes the dirty commutator of 540 Mabuchi and Tamiya Sport tuned motors quickly. This item is a Much More exclusive that allows you work on non rebuildable motors. It works by placing the commu polisher into the motor’s airhole, press the polishers button down and rotate the shaft using the aluminium mounted on the main shaft.
Source: Much More [much-more.co.kr]