Don't be afraid to take a triangular file to an existing lockring wrench. I didn't care for my Park at all because it seems to mung rings up routinely. After dressing the face that engages the slot, it works very nicely now. File it and check for fit as you go.
Charlie "likes files, esp. mill bastards" Young Honeybrook, PA
Roy stated:
> I use a Sheldon-modified Hozan
> <http://www.sheldonbrown.com/harris/tools.html#lockring>, but
> remember that the lock ring is "righty loosie, lefty tighty"
>
>
> Roy "yes, I'm playing with one now" Drinkwater
> Lititz, PA