I currently have a set of EDS, and have used the Team Losi ones and some of the cheaper ones....
BUT I also have a set of the XTM hex drivers from Hobbypeople.net that I got as a prize at a race. They are actually an EXCELLENT set of drivers. Hardened and all. They work as well as my expensive set of EDS drivers at a cheaper price point. Good size handles that have a good feel to them. I've not broken one or had a tip "wear".....
check them out...