This Irwin auger wood drill bit is engineered for superior performance in all general wood boring tasks. Its single spur cutting edge creates a smooth finish by scribing the hole's circumference, while the hexagon shank ensures a secure grip, preventing slippage in your drill chuck or extension. The solid center provides enhanced rigidity during boring. Featuring a self-feeding screw point, this bit allows for faster drilling in both soft and hard woods. The fully hardened body, from tip to shank, guarantees exceptional durability and longevity. Product Summary: Irwin auger wood drill bit, general wood boring, smooth finish, no slip, fast boring, durable, wood tool accessory.