Only the threaded cap has a 3/4 cut, the fine thread cap does not. The description sounds like they both had a knockout, which is what I wanted. So it's a waste of money to get 2 packs for 3/4 knockouts of both thread types. Should have just gotten 2 bags of fine thread with a knockout hole and 2 bags of course with a threaded hole. Waste of money and time for them.