The park tool chain whip 15mm pedal wrench and chain whip is a fantastic combination tool from park which offers a chain whipsprocket remover along with a 15mm open ended pedal wrench at under pound25 in price this bike tool represents fantastic value for money as it is essentially two bike tools in one the dual purpose use of this park tool means it takes up less storage space in your workshop or tool box for greater convenience use the pedal wrench for hassle free removal and installat