The Irwin IRW10502749 is a long series 12mm diameter auger drill bit with an extended 400mm overall length, specifically engineered for deep boring applications requiring larger diameter holes. This specialist bit is essential for structural work, deep post holes, services installation through thick beams, and construction applications where both substantial hole size and extended reach are critical. Designed for all general wood boring, this long auger bit offers superior performance in the mos
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