I have many more tree stumps left to remove and it is time to work smarter. So I have been using a pick axe, loppers, and prybars to get the job done- and that is hard work. But I have been reading about another method which is more painless. You cut the stump down low, drill holes straight down in stump, pour fertilizer in holes, and wait 6 months. That sounds better to me.
So my question- how should I go about drilling down into the stump? A bigger drill bit makes for quicker result. I tried a 7/16 bit, and it snapped on 3rd stump. And I was thinking that perhaps I would be better off with a hammer drill. What would the best drill/bit combo be for drilling straight down into stump?