The fit on the short arm of these hex wrenches is better than my PB Swiss that I use at work. Virtually no game. The ball end needs to be revised in my opinion. It doesn't have enough material to be able to tip the wrench like PB. I have found that with other WERA L-hexes (color coded) the ball point grinds are higher ground on a more PB like tool which should cause it to tip a lot more and no binding when removing fasteners quickly. . Overall still a very good set of allen keys and the Hex Plus feature works. I swear they transfer more of the force you put on the lock than normal keys.