I know there are other threads on this topic, but does anyone know of a make of socket that will allow me to remove the plugs from my bike? Other threads detail sockets available in the US, but not here in the UK.

I was thinking in terms of a Teng 18mm, because my Teng socket set seems to have sockets with thin walls. Does anyone know for sure?

I'll only get the Triumph one if I absolutely have to. Seems like every new job I do on my bike requires me to buy more tools (valve shims next) and I don't want to end up with a collection of 18mm sockets none of which fit.