Some tips even have different shapes entirely to improve performance, like the screw-like ones seen on the Bauer Wood Auger Drill Bit Set or the wide, flat ones on some of the Warrior Quick-Change ...

A time-honored bit for making holes in wood is the auger bit. It's meant to be used in a tool called a bit brace (or sometimes, simply, a brace). These bits were available in various shapes ...

Wood: Auger: Has a wider twist than a normal drill. It has a screw shaped end point. Not as clean cut as a twist or flat bit. It is used with a hand drill: Wood: Hole saw: ...