Brad Point Bit

The brad point bit is of a family of Drill Bits perfected for drilling in wood. "Brad" in its name comes from the point on the tip. To achieve greater precision in drilling holes in wood projects, before it penetrates into the wood, the bit's point prevents it from wandering uncontrollably during rotation. Brad Point Bits are discussed more fully under Drill Bits
brad point bit 1
brad point bit 2