If you can remember the name of the dealer that you bought these tools from originally, that may go a long ways towards getting them warrantied.
The dealer here in this little piss ant town, knows and hangs out with the dealer that I last dealt with back in the mid-90's, so I have no fear that IF I should ever need to warranty something, it would be no problem at all.
I was talking to one of the customer service reps one day, before we had a dealer, and had ordered some little nickle or dime item, and was telling the gentleman about Tony E. , the dealer that I had when I worked at the John Deere dealership in Stephenville, TX in 1994-95, and he remembered the guy.
I also gave the local dealer the name and number of the Snap-on representative that I dealt with when I was buying my toys, er tools, when I was living in Colorado, so that he can verify that I am what I say I am, if he so chooses.
BTW, I still have cards and calendars with the names of the three Snap on dealers that I have dealt with since 1992, and I wish I could remember the name of the dealer from Cadillac, Michigan that I was buying from in 1987-88, when I was working in Kalkaska.