Irwin HSS Pro Drill Bits

The Irwin HSS Pro Drill Bit in 5.5mm diameter is supplied individually in a PVC tube, offering convenient single-bit supply for professionals who need occasional replacements or specific drilling tasks. The 5.5mm diameter is particularly suited to general fabrication, construction work, and creating clearance holes for medium fixings across steel, timber, and plastic materials. Manufactured to DIN 338 standards from high-quality HSS steel, this drill bit features precision ground cutting edges that deliver fast drilling and perfect finishing. The ground flute design ensures maximum accuracy whilst facilitating efficient chip removal, maintaining clean cutting performance throughout extended use. The universal 118° point shape makes it suitable for drilling alloyed and unalloyed steel, non-ferrous metals, cast iron, and plastics.