RE: Hardened Allen Wrenches and Screwdrivers
I have used Bondhus wrenches for over 20 years in a machine shop setting and am quite happy with them. The little set screws do get to be a bit of a pain as it is the screw that deforms first and then starts to round the wrench's edge.
Unfortunately some of the micro heli stuff has smaller screws than Bondhus has wrenches for.