I have a key (for a 2006 Ford Focus), and the bit that attaches it to the keyring has broken off.
I could fix this by drilling a hole in it, and attaching the keyring to that. But it's got some electronic doodads inside it (so you can't just copy the key and start the car with it). Where is a safe place to drill a hole in it? Or how can I work out (without an x-ray machine) where it's safe to drill?!
this is a key that the transponder went out on, cut it down with a razor knife. the transponder is a black magnet looking thing, I have it marked in white.
as you can see, plenty of room on the upper for hole drilling
If you still have two working "CHIPPED" keys you can program a new third key. I had to do this a few years back on one of our work trucks.
Buy a blank chip key, have it cut then follow the instructions in this link. FORD CHIP KEY Program
If you get it right it works first time.
Then you can put the old broken one in the drawer as a back up.
You can also make a "clone" with just one chipped key. lt will work on that vehicle but cannot make more keys.
The trick is finding a locksmith to cut the key for you . Most either want to sell you a overpriced key of theirs or have gotten yelled at for messing one up before.
I had them cut me a key on a plain blank ( older Ford pu key) , walked outside and when it worked ; I went back in and said " You do a great job, now cut this one. I understand the risks"