The Irwin HSS Pro Drill Bit in 11.5mm diameter comes in a bulk pack of 5, offering excellent value for professionals working with this larger specialist size. The 11.5mm diameter is particularly suited to heavy-duty industrial work, structural metalwork fabrication, and creating precise holes for large fixings and through-bolts in demanding construction and engineering applications. Featuring high-quality HSS steel construction, this drill bit is designed to withstand regular professional use in
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