I've been brainstorming buying a used tiller with front tines to create a murder machine inspired by @oil pan 4, but just ran across what I think is the poor man's version using a run of the mill gas edger, put on 3 saw blades separated by washers. Here is a gentleman who made short work of a large stump. I'm certain "collateral damage" can probably do the same job at a fraction of the time.
I picked up a 5hp troy bilt this afternoon and will give it a try on a dead tangerine tree stump sometime soon.
I picked up a 5hp troy bilt this afternoon and will give it a try on a dead tangerine tree stump sometime soon.