Am I missing an all important tool, or do I just need to grind down yet another socket to be able to get at the bolt heads on the Matco wheels (mains - need to split the wheels to put the tire on)? I can get a socket on the nuts, but not the bolts themselves. I've run out of my stock of garbage sockets that I grind down to a paper thin wall on one side, so before I go out and buy another socket to sacrifice, I just want to find out if there's a different standard tool that I'm just missing.