Irwin HSS Pro Drill Bits

The Irwin HSS Pro Drill Bit in 10.5mm diameter comes in a bulk pack of 5, offering practical value for professionals working with this larger specialist size. The 10.5mm diameter is particularly useful for heavy-duty industrial applications, structural metalwork, and creating precise holes for large fixings and through-bolts in demanding construction environments. Constructed from high-quality HSS steel, this drill bit delivers reliable performance across the most challenging applications. The precision ground cutting edges provide fast drilling with perfect finishing, whilst the ground flute design ensures maximum accuracy and promotes efficient chip removal, maintaining clean cutting throughout extended drilling operations in various materials.