Bob_Villa wrote:
The wall is ceramic tile, drywall, foam, and then 12" concrete block (I
can't detect any hollow). I have a 12" long masonry bit but the total
wall is something like 18 inches!
Is there a way of detecting where the drill is located from the outside
(after maxing the depth from the inside)?
I was wondering about studfinders that can detect live wires and metal
studs or a non-contact voltage detector and connecting a live wire to the
bit or rod...any thoughts on this?
Thanks!
Bob_V

Cut a metal hanger, sharpen the point and chuck it into your drill. Drill
the max depth with the masonry bit and then use the wire to complete the
hole.

A hanger will go through both wood and block. BTDT