Not only do the sockets fit over long bolts making deep sockets unnecessary, but also the sockets fit over ANY LENGTH of bolt. The pass-through "technology" means you don't need deep sockets... nor even deeper sockets. In addition, the sockets will fit onto 4-point, 6-point, 8-point, 12-point, and spline heads in both standard and metric. And it comes with a nice little carrying case. The problem right now is if you contact the 800 phone number to order, they tell you they are presently sold out and won't take additional orders until more supply arrives.