- The Irwin auger wood drill bit has been designed for all general wood boring and offers 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 - The fully hardened body from tip to shank provides extra durability. The Irwin IRW10502751 Auger drill bit has the following dimensions: - Drill Bit diameter: 13.0mm - Total length: 191mm - Working Length: 114mm.
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