Yes, mainly wore out gears in ratchets. While changing the gear out, the dealer preachers about greasing the gear regularly! Dealer truck has replacement parts onboard. Worn screwdriver tips are replaced on the truck also, installed in your handle. If the dealer doesn't have your tip on board, he gives you a new screwdriver.
Dikes wear out, as we use a lot of safety wire. I am on my second pair of dikes in 40 years. Most breakage is sockets, from using the wrong size drive. Most often we are just replacing the wrench because it walked off. Can't recall ever seeing a bent or broken combination wrench.
hugs, Brandi