I have 3 interior doors in which I need to cut locks. The locks are, however, max 5 1/2" deep, and I'm concerned that I won't be able to keep a ~15mm drill straight enough over this distance .
I asked a local recommended tool shop, but his answer was "I get asked this all the time. Dunno, mate".
I'm assuming some type of jig might be in order, but what should I be looking for?
Thanks for any advice.