I'd like to relocate some AV equipment to the closet behind this stone facade. I'm told that this is artificial stone.
There is a small existing hole in another location of this stone wall already (visible in the second photo, to the left of the plywood), and I noticed that there is a metal mesh behind the stone. This hole just runs down the wall.
I need a new, larger hole about 12" from the floor, and it needs to go thru the wall (not down the inside of the wall). The other side of the wall is drywall.
Should I use a chisel and go at the mortar first, then expand into the stone as needed? The existing hole was made using this technique, but it's smaller. Or should I use a drill, and if so, what sort of drill and what sort of bit?