PISTON LOCKER KIT + UNIVERSAL CLUTCHING EXTRACTORS for chainsaws The kit consists of: Steel engine locking screw on the cylinder (screws in place of the spark plug blocking the piston), excellent for chainsaws etc.. Code R330280 Chainsaw disassembly clutch puller UNIVERSAL Code 001000357B Chainsaw disassembly clutch puller OLEO-MAC Code 001001214R PISTON LOCK KIT 4