Craftsman 3pc Pinless Impact Universal Joint Adapter Set contains 1/4", 3/8" and 1/2" Drive SizesPinless design distributes torque loads evenly over a greater surface area
Nice design and look sturdy but more importantly they help loosing nuts nicely without any issue. Nice set for anyone to have
I use them all the time at work. They hold up well and they are the paddle style that do a better job of transferring torque than the old pin style.