Apparently you've never had to change drill bits up high on a ladder? I've dropped (and lost) plenty of drill bits trying to undo the chuck whilst holding a screwdriver bit. It may have its uses if this can free up a hand.
A useful comment on HN!
Great idea!
https://www.lowes.com/pl/power-tool-accessories/drill-bits/t...
Not sure if I agree here. Of course SDS has been the standard for quite a while in masonry uses, but impacts simply do not have the power of a full sized drill with a 1/2" chuck (or bigger) for more difficult materials. The 1/4" hex shank is pretty limiting for torque as well, and the chuck has far worse concentricity if you care at all about precision.
The hex shank bits are decent (although I'd say I prefer round shank with flats) but calling round shank obsolete seems a bit far.
Try getting a quick-change chuck and this opinion will change.