Hi Lou,
We shipped our tools out - boyfriend has LOTS of them, he says they are all for his work (electronic engineering), but I suspect he just can't resist passing shiny new tools in a shop without buying them!
Anyway we didn't bother cleaning them, and they were not pristine (I would have cleaned them if there was any soil/grass on them). They got inspected by MAF and were cleared with no problems. Just remember when they are being packed to make a note of which box they are in for your Customs declaration form and don't lock any tool boxes as MAF will break open the lock if they want to inspect them.
HTH,
Clare
