On Thursday, August 1, 2013 6:05:52 AM UTC-5, DerbyDad03 wrote:
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

Seriously? Do you use HS (I know you don't use hammer-setting!)?