It will if you heat it up really hot like I described. It will only go in a little ways initially, but let it sit a second or two and it will go in a little farther and so on.

So far I haven't had to heat the key a second time. It transfers enough heat to the tumblers to thaw them out and get it working - even when I couldn't even get the key more than 1/4" into the lock to start with.

I like the keyless entry idea too though...

__________________
1984 300 Coupe TurboDiesel
Silver blue paint over navy blue interior
2nd owner & 2nd engine in an otherwise
99% original unmolested car
~210k miles on the clock

1986 Ford F250 4x4 Supercab
Charcoal & blue two tone paint over burgundy interior
Banks turbo, DRW, ZF-5 & SMF conversion
152k on the clock - actual mileage unknown