The Irwin long auger wood drill bits have been designed for all general wood boring and offer a superior performance.
The single spur cutting edge scribes the circumference of the hole for a smoother quality finish.
The hexagon shank prevents slipping in a drill chuck or bit extension.
The solid centre provides extra rigidity whilst boring; the self-feeding screw point provides faster boring in both soft and hard woods and the fully hardened body from tip to shank provides extra durability.
The Irwin IRW10502770 Auger bit – long series has the following dimensions: