New Craftsman era.

Yup they were really good quality up until about the mid to late 80s. Then they started slipping and the rest is history.
My adoptive dad gave me a set of craftsman from the 70s that he bought back then. I'm on the fence on using them. On one hand they are excellent quality and shouldn't have any issues and were made to be used.

On the other hand, if I mess something up then it almost can't be directly replaced today and I don't want to mess up stuff given to me by a loved one like him.

Right now I don't use them and keep them in the house.