What main features should I expect to find on a petrol chainsaw?

• A reasonable quality, powerful, 2-stroke petrol engine

• A guide bar of around 16" - 20” (40cm - 50cm)

• Good chain speed for efficient cutting

• A good quality, robust and decent sized hand guard

• A fast acting chain brake

• A chain catcher to stop movement of a broken or loose chain

• A reasonable weight

• Good balance