wrote:

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
the wood.

I have these Bosch Progressor holesaws:

http://www.screwfix.com/p/bosch-prog...kit-8-pc/45172

They are the best ones I have used to date - I've used them on wood,
plasterboard (sheetrock), fiberglass and plastics. I have not tried on metal
- but they claim to. I think you'd be fine with "thin steel", say less than
1/16".

--
Tim Watts Personal Blog: http://www.dionic.net/tim/

"A fanatic is one who can't change his mind and won't change the subject."