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…