Because they make contact on the flat sides of fasteners rather than only on the corners, these bits significantly reduce slipping and stripping. They are also known as lobular bits.

Quick-Change Hex Shank—Quick-change hex shank bits have a groove in the shank and fit directly into power tools without an adapter. They offer more reach for recessed holes and less wobble compared to a hex shank bit used with an adapter.

Magnet—Bits with magnet hold steel fasteners.