The Irwin IRW10502751 is a 13mm diameter auger drill bit with a 191mm overall length, offering a specialist size for specific engineering and construction fastener requirements. This diameter is particularly useful for certain bolt specifications, specialist fittings, and applications where precise hole sizing between standard diameters is required for optimal fastener performance. Engineered for all general wood boring, this auger bit delivers superior performance with its precision-engineered
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