In 1993 I bought a Halfords 3/8 and 1/4 drive socket set that came in a blow-moulded case. I don't think the Professional range existed then, and it doesn't say Professional on it.

Anyway, the set has served me well for donkeys years, but today I managed to snap the little 1/2 to 3/8 adapter.

Will they sell things like that individually?

Does the Lifetime guarantee apply to items before a certain date?
Does anyone know when it was introduced?
Does their Professional stuff say this anywhere on it?

And will their guarantee mean I get a whole new set?