Echo CS-590 Timber Wolf ChainsawThe Echo CS590 Timber Wolf Professional Grade saw cuts up to 40" diameter logs. It is the best ECH0 saw value, power with professional grade features The ECHO Timber Wolf is ideal for cutting firewood on a regular basis. Features: 59. 8cc professional grade, 2 stroke engine for outstanding performance Automatic, adjustable clutch driven oiler for reduced oil consumption Decompression valve for easier starter rope pulling Easy access, heavy duty 2