The Irwin HSS Pro Drill Bit in 8.5mm diameter comes in a bulk pack of 5, offering excellent value for trade professionals working with this larger mid-range size. The 8.5mm diameter is particularly useful for heavy-duty construction, structural metalwork, and creating clearance holes for large fixings across steel, timber, and other materials. Featuring high-quality HSS steel construction, this drill bit is designed to withstand regular professional use in demanding environments. The precision g
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