My Echo clearing saw came with a 10 inch blade which cuts well, but cannot be resharpened once dull. These cut about just as well, stay sharp for a long time and can be easily resharpened with the same round file I use for my chainsaw. I wish they were 10” so I could cut larger diameter saplings, but on the other hand I have noticed that the unit vibrates less with smaller blades. Very pleased with these overall.