Quote Originally Posted by archerj View Post
Mine dont have a rotating ring, just a few grooves on a cylinder. In fact i'd never even heard of them. Just goes to show, you learn something new every day.
Sounds like a clever invention to foil the attack i suggested above. I assume this rotating ring is slightly bigger in diameter than the rest of the body of the nut?
This rotating ring type is the reason I suggested that anyone with any problems should contact dynomec to find the nearest garage with their tool, as they claim it works on 100% of lock nut types.

Intrestingly - the wheel / tyre industry are now starting to recommend that you don't use locking wheel nuts, unless you have some wheels that are extreemly unusual/costly, as almost all cars now come with standard alloys.
The initial idea of locking nuts was when alloys were rare, and people would steal them just to get a set.
At the same time, I know from my wifes car, which had steel wheels, and we bought ordinary alloys for it - the insurance company insited that we have locking wheel nuts otherwise they would increase the premiums.