I first got a set of Chapman "gunsmithing" screwdrivers at a banquet as a door prize . . . hardened and hollow-ground, they mostly worked OK, but some of the bits were a tad brittle and broke far too easily.
I now have a set of Wheeler Engineering screwdrivers that appear to be of higher quality - none have broken yet, anyway - and am satisfied for now. The set even has a number of specialty bits that are rather uncommon, such as one for reinstalling the trigger rebound spring on an S&W revolver.
(BTW, on the topic of Wheeler Engineering . . . they have a torque screwdriver aimed at the market for installing 'scope rings and such. The on-line user reviews I've seen are NOT very good.)