I do cut the occasional tree and have done so with 1” diameter. It was all my mower wanted. Couldn’t see going through several that aren’t far about. I realize they aren’t all 1” but a one inch in combination with a 1/2” would be too much, in my opinion. I was not using full throttle. It would cut them better at full throttle. But really won’t know until you try it. We want video if you do try it!