Purpose: Pliers for removing and installing snap ring on helical gear on drive shaft. Transmission 722.9: Pliers for removing and installing the snap ring on piston guide and retaining ring of multidisk clutch. Transmission 725.0/1: Pliers for removal/installation of retaining rings and outer snap rings. Transmission 724.0/1/2: Pliers for removal/installation of retaining rings.