It went though them all rather easily. AND the chain adjustment requires no tools. This is not a replacement for a chainsaw. I think it too was broken or the chain was dull. Good torque, I can't really slow it down.
Husqvarna 445EII1645 Features & Specs
X-TORQ - Delivers lower fuel consumption and reduced exhaust emission levels in accordance with the world´s most stringent environmental regulations
AIR INJECTION - Centrifugal air cleaning system removes larger dust and debris particles before reaching the air filter. This results in reduced air filter cleanings and improved engine life
SMART START - The engine and starter have been designed so the machine starts quickly with minimum effort
EAST TO START - Combined start/stop switch, Smart Start and fuel pump make the saw very easy to start
SNAP-LOCK CYLINDER COVER - Saves time when changing spark plugs and cleaning
Editor's Impressions Of The Husqvarna 445EII1645
Cutting Power
Tool Motor Power
Chain Alignment
Value For Money
Build Quality
Feature Set
Husqvarna 445EII1645 Final Thoughts
"Fewer parts to break."
The pole is long, and can be heavy to maneuver. This thing cuts through wood like butter. No regrets over not going with a Husqvarna so far. So I bought this one and it did a great job. I don't get all the negative reviews.