Again, we're down to context, but if he had been talking about his use of various tools (when working on vehicles), I would have a pretty good idea!
I don't really know why I confused my example in that way! It would have been more sensible to stick with things electrical, and a direct equivalent of the example you gave - if I asked an electrician (who was going to do work on my electrical installation) what brand of sockets he/she recommended, or if the electrician asked me what type of sockets I preferred, I doubt whether either of us would be thinking that the other was talking about tools used in a workshop, plumbing fittings or artificial limbs!
As far as I am concerned, in terms of words like "lamp" and "socket" (and many others - even "drug"), it is nearly always
EITHER clear (from context) what is almost certainly the intended meaning
OR that there is uncertainty about intended meaning (hence a clarification needs to be requested). However, anyone who wants an argument can argue about that, since - very rarely, it will 'go wrong'
Kind Regards, John