There are lots of ways to store multiple insert bits in a multi-bit screwdriver, but Wiha might have the neatest. As the eight-bit tray flips out of the ergonomic cushion-grip handle, the internal drawer rotates so you can easily access the bits.
It looks like the bits are held in the bit drawer by friction, so they don’t all come flying out of the handle when you flip the bit tray open. Once you’ve chosen the correct precision-machined 1/4″ insert bit, strong rare earth magnets keep it secure at the end of the hardened tool-steel shaft.
Wiha makes three insulated and three non-insulated versions of the BitFlip, each with a different set of bit inserts. Their pricing is $28 for the non-insulated and $30 for the insulated versions, but you can find ’em for under $20 if you shop around.