Review on Efficiently Remove and Install Spark Plugs with the Performance Tool W1129C Universal Socket, 5/8 by John Langdon

Not the smoothest connection as many say, but holds connector well. Probably not for everyday use, and well, tool snobs will cringe. The handle is big enough to rip out the end cap, but not so big that you don't have to worry about the end cap breaking on the way back. Used on 2006 Scion TC and lawnmowers with excellent results. The price is solid value. In the end, that plus a candle set is significantly cheaper than going to the dealer.