Have a milwalke RA drill and 3 Hole hawgs for over 5 years now. drill 3/4" to 3-1/2" holes all the time. Other than repairs for one of the hole hogs that was dropped 4 floors have not had any problems yet. Just have to make sure the drill operator is using it in the intended range. Smallest bits 1/2" to 1-1/4" fast any thing larger use slow speed. Keep the bits sharp and you can drill for 8-10 hours a day for months.
