
I expect many have seen these 10 inch long sockets with a magnet, not a rubber bung in the end. But for those who haven't or wonder if they fit down the plug tubes, I just got one and it fits perfectly.
My problem has always been that I don't worry about the plug tubes leaking a little oil. So it does tend to collect round the plugs, and get the rubber bung in the plug socket very oily when changing plugs or setting the mixture. That, as I'm sure other's have found, is a problem, because the bung then tends to stick to the plug better than the socket, when you're putting the plugs in, and you can't get the plug caps on. The other problem is the plug socket tends to come off the extension and stays down hole with the plug.
What I've been using for 20+ years is one of those 3/8ths extensions with a locking mechanism on the socket end, a socket with a rubber bung in it to take the plugs out, and another without a bung to put them back. However, the bungs only last so long before they perish, and I have to buy another plug socket. And that can be a problem in it's own right. I also end up with a shed load (about 4 currently) of sockets for putting plugs in.
Yes, I could clean the bung properly after every use. But, I think, just taking the bung out to clean it increases the chances of it not staying in the socket, and I ain't that godly anyway.
This is, I think, a much better solution, and really well worth the £10 I paid on an eBay auction.
Graham