WHITES PISTON PIN TOOLThe Whites Piston Pin Tool is an essential tool for removing and installing piston pins. Prevents damage to your piston and the pin. With a knurled aluminium handle, 9 16" hex head screw and three left hand adapter nuts. Can be used on pistons sized 40 100mm (1 5 8" 4") and pin sizes 12 25mm (1 2" 1") including all single cylinder engines from 50cc to 600cc and all 2, 3 and 4 cylinder models. Prevents damage to piston and pin Knurled aluminium handle