Are SO impact sockets consumable? Speaking as a shop owner, a full time mechanic and former part owner in as SO franchise, the answer is NO. They are fully warrantied for life to the original purchaser. If you break one, or wear it out, your dealer should replace it. Do they wear out? YES They are supposed to. Why? Very simple, the socket is designed to wear so the anvil on your impact does not. This is where those GP or Sunex sockets, which are fine tools that do their job well, end up costing more than the much better SO sockets. How does that add up, you might ask? Simple, the socket is replaced for life, the anvil on your impact is not. Not trying to start any drama, just trying to point our the whole story behind the differences in these tools. SO wants to sell you an impact and a set of sockets. Both items cost a premium. However, if you only use those SO sockets on you SO impact the sockets will wear out over time and your dealer will replace them. 10 years later you will still have only that same amount of money invested in those tools. Napa (or any other vendor, not picking on anyone) would also like to sell you a set of sockets and an impact. Those GP sockets and an AirCat impact will cost you a lot less, and because those sockets cost so much less there is no replacement money built into the cost, so they have to be built not to break, but also not to WEAR. They do this buy making the socket hard, in most cases harder than the anvil on any impact you can buy. So your impact wears out and has to be repaired or replaced. Thus in that same 10 years, maybe you have never replaced a socket, but maybe you have gone through 3 impacts. Which route is the better value? Depends on you and your preferences and situation. Again, not trying to talk anyone into anything or change anyone's opinion, just putting the information out there. Let the flames roll.