This is the best thing for my back yard tree pruning. Chainsaws are too much trouble. chains need to be sharpened or renewed/ replaced. This worked fast and easy ( maybe not as quick as a powerful chainsaw). It worked on tree limbs up to 10 inches thick, which was plenty for me. The blades are well-made, sharp and sturdy, and cheap for a quantity of 3, to be used with your sawzal.