Park Tl, BBT-22, Bttm bracket tl, Cartridge type, Fr 1/2'' drive ratchet

For installing and removing Shimano and ISIS Drive splined 20T BB cups Can be used with a 3/8'' drive torque wrench, 3/8'' ratchet driver, 32mm wrench, FRW-1 Freewheel Remover Wrench, or 1'' wrench