Piston Skirt
Super OPE Member
Why ...... aren't they tough enough ......
Judging by average lifespan of the chainsaw (at least in some European countries) forestry is the toughest place you can use a saw
Some local firewood cutters are still using old 560XP with mag cases, forestry guys still can't squeeze a year from aluminum version (mag ones went dead in 300-400hrs)