These are beefier than typical Allen wrenches. Many others have the same profile as the hex head for the entire stock, however these seem to be the full circumference of the hex before the 5 sides are cut, which I really like. The only draw back I've encountered so far is I had one fastener that was in a deeper spot and subsequently the exact size of the wrench, meaning that the grip (which I otherwise like) was preventing me from far enough down to access it, so I had to modify the grip by removing a portion so that it would reach.
Rating:
[5 of 5 Stars!]