Building up my bits list for replacing the clutch bearing, clutch pads and other maintenance tasks, but one thing that seems harder to find is a good 6 sided 37mm clutch socket. Apparently some of the Ebay bought ones from China can be more 38mm than the quoted 37 which is not a good thing, so anyone know of a reasonably priced and UK obtainable socket? - don't want to spend £30-50 on a top brand one for what will be very occasional use.
There's a youttube video of someone using an adjustable wrench for removal, holding it on and banging the end of the wrench on the floor to loosen the bolt - works well but not so good for re-installation

Seems a good torque wrench will be in the region of £60-70 - is it needed? Can you just add marks for where the bolt or nut was before removal and tighten back to that spot?