Britool is one of the best quality tool manufacturer/supplier. My large set of sockets A/F, metric, Whit. cost me 70 quid at a farm sale, many moons ago. I have twisted cheap socket extentions, broken cheap sockets, and generally thrown away most of the cheap tools I have ever purchased. Not so the Britools, they are superb quality.
Head Gaskets for a CS - always have a spare handy. You may need it.
Paul, BTW, the last set of tools I bought were from Canada. So much cheaper than the UK.
Regards, RAB