I've not tried them in end grain, but I have a set of Freud carbide Forstner's I must have bought 14 years ago (or more). In that time they have drilled numerous holes in all manner of materials, including MDF, particle board (some with laminate on it) and a lot of hardwood. I've had them sharpened once, and they are still performing like a champ. But for the MT thing, it does look like you can get an adapter to use with the Maxi Cuts. When you go to the link, go all the way to the bottom of the page.