sockets themselves are ok they do what sockets do. but the protective sleeve around the nest rips easily, I contacted the seller and asked if they had extra sleeves for sale and they said they would give me a few dollars back and I could buy them locally. I live in the middle of nowhere so I bought them from AMAZON. Anyway, the sockets are great, seem to hold up when used in my 1/2" m18 Milwaukee impact wrench and the torque bars are actually tested fairly accurately against a few different torque wrenches and I'd say within 2 -5% anyway depends on how much uga dugas you give