I ve tried millions of things to get a hole in the steel door.
How to install a chain lock on metal door.
As da01 mentioned a good 12 volt drill should manage this just fine if you are using a drill bit designed for metal.
Install a deadbolt lock to a steel door with help from a home improveme.
I m tring to install a chain lock on the inside of my home.
Position the lock with the swinging arm portion on the door frame near the edge with the arm extending over the door.
For the door side screws with a length1 8 to1 4 shorter than the thickness of the doorwill give the most strength.
Tape up the template for the lock plate.
I have had metal doors on my last three houses and all were easy to drill.
Adding a deadbolt lock can be a great way to improve the security of your steel door.
If you do not have a deadbolt on the door place it about three to six inches above the door handle.
Position it about 3 to 6 inches above the deadbolt on your door.
Also if possible use minimum 10 screws butit s always best to take the latch to the hardware store to get the correctscrew sizing.
This is the part that is not attached to the chain.