I'm looking for a set of T-Bar Socket Spanners. Can anyone recommend a decent make. Even if it's just the T-Bar where I can use separate 6mm sockets.
Pop down to Halfords. Any old T-bar will do for 6mm socket. It's not as if you're going to apply enough torque to break it at that size. If you want something a bit more quality, you can do a lot worse than Halford's Professional, Teng or Draper....in fact, any of the higher priced tools. The cheap stuff is cheap for a reason.
I got a set from MandP ages ago and I am not sure if they do them now. Try eBay, mine are like those in the link but with a wider range of sizes. Motion Pro Set of 4 T-handle sockets (8, 10, 12, 14 mm) Repair MX Motocross | eBay