I'd suggest to call a locksmith. I've installed several dozen deadbolts on
metal clad doors, and that's neveer been an issue for me.
Christopher A. Young
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Do they make holesaw blades for steel doors?
In order to install a door lock, one needs to make about a 2 inch hole
in a door. On a wooden door, a common hole saw works fine. But on a
steel door, (which is two layers of a fairly thin steel with wood
sandwiched in the middle, around the perimeter).
I did this once with a standard holesaw, ruined the saw and made a very
messy hole in the door which the lock did not cover real well, forcing
me to just put silicone caulk around the base of the lock to seal the
bad spots. I also had to file the hole several times to get the lock
to fit properly because it was not round and offset on an angle.
Now I have to do it again, and want the right tool. I'm not going thru
that hassle again, as well as messing up the door.
There must be some sort of tool made that will cut both the metal and