On the subject of LN, their socket chisels, while sharp as hell, do have the annoying habit of the handle coming out the socket and falling on the floor. I'm tempted to epoxy those in.
I had the same problem with two of my LN bevel chisels. The inside of the socket was a slightly flattened cone and the handle was making contact with the handle in two small areas. I was tempted to take some material off of the handles, but they would still not fit well in stretched part of the socket. I bought the chisels directly from LN in Maine, and when I notified them about this, they had Dictum in Munich send me replacements and I returned the bad chisels back to Dictum.
If you haven't contacted LN, or the distributor where you bought them, LN should exchange them.