I went through this a little less than a year ago. Had the tool but it was worn and would only remove three of the four center cap lock bolts. Which tire did I pick up a nail in? Of course, the one with the unremovable center cap lock bolt? :ugh Took it to a local Corvette shop who had to drill off the top. Replaced it with a hex head metric bolt from the local True Value. Couldn't find just the tool. Only a new set of lock bolts with the tool. Sound like a sad story? Not so fast. While I was at the local Corvette Shop I told the owner I would just get a bolt from the hardware store since I had plans to get some ZR-1 wheels anyway. He said, Really? I have a set of chrome ZR-1s with Goodyear GSCs on consignment. Long story short - take a look at my avatar!