WeldingWeb - Welding Community for pros and enthusiasts banner
1 - 1 of 51 Posts
Rent a core drill, it's reasonably cheap and you will see how easy it is and want one. Bring your shop vac for cleanup. Don not drill deeper than 2 1/2" -3" without checking on your progress. Drill one hole, remove the junk, and check your progress.It's a bitch if you drill through. use a piece of moistened kitchen sponge if you get a hole that goes through and the hole won't hold water, so the grout won't leak out.
 
1 - 1 of 51 Posts