Not really a "woodworking" question of the usual variety:
I had two pine trees removed at the beginning of the summer. I want to drill some holes into the stumps & add some sodium metabisulfite to help break things down.
The woodworking portion of this question is what kind of drill bit is best for drilling into end grain wood? I figure my paddle style bit isn't going to be the best option, but I'm not sure what style bit I should try.
Anyone have some experience to share?