#3, 5,6, and 7. Orignally I purchased these to double up on my tri cam set. If a curved hex doesn't fit the first way.. flip it over, or turn it on it's side.... it will bite one way or the other. I like to think of these as nuts on steriods. Because these "cam" more than a hex a nut tool is a good thing to have handy. Will take flares a little better than a straight walled hex. One day when I'm famous I get a whole set.
I bought this as a cheap way to duplicate my #2 #3 cam it has done what i want some of the time but wish it was a webbed sling the wire is pretty rigid and makes it hard to utilize different placements with it