I sent in a proto mfd in Los Angeles non-professional 3/4 5534 that had a hair line crack I bought off of ebay with the rest of these plomb sockets and a 5689 ratchet and 5668 breaker bar for 110$. I sent in the socket and look what I got in the mail today... Great warranty seeing, how they were owned by plomb(or changed there name to proto at that time) and then got sold to IR and then to stanley and they still replaced it, good in my book.
