Its kind of a bad pic so maybe its just the pic but the corners of your hex drivers dont look very sharp to me. They look a bit dull and rounded off. Compare yours to these pics and see if they look a bit rounded. If they do then Id replace them.
MIP makes some good drivers. I dont have any experience with protek tools. Just make sure you either buy tools that are made from hardened tool steel like the MIP tools or buy tools made from rolled spring steel with precision ground tips like Team EDS, A+, or Hudy.
Yeah, I've had my core set of EDS wrenches for over 10 years and the edges on the tips are still sharp. I also like the fact that they sell replacement tips for them just in case so you dont have to buy the whole wrench over again if something were to break.
Dremel trick works pretty good. Make sure you're using quality tools that have good sharp edges on the hex. If the start to round off youll strip a lot of screws that way.