I wish to bore a 12mm hole in a 9x2 vertically. How do I keep the bore hole straight through 9 inches?
The original strike plate for the deadbolt is mounted with 2 screws on top and 2 screws on bottom. I'm replacing the whole deadbolt and the new strike plate only has 1 screw on top and 1 screw on ...
Suppose I want to pre-drill for, say, a 5/16 screw. How do I determine the correct drill bit diameter?