Irwin HSS Pro Drill Bits

The Irwin HSS Pro Drill Bit in 3.5mm diameter measuring 3.5 x 70mm is supplied individually in a PVC tube, providing practical single-bit purchasing for professionals who need occasional replacements or specific drilling requirements. The 3.5mm diameter is particularly suited to general construction work, metalworking applications, and creating clearance holes for standard screws. Manufactured to DIN 338 standards from high-quality HSS steel, this drill bit is built to deliver consistent performance throughout its working life. The precision ground cutting edges enable fast drilling whilst ensuring perfect finishing, and the ground flute design provides maximum accuracy combined with fast chip removal. The universal 118° point shape makes it suitable for drilling alloyed and unalloyed steel, non-ferrous metals, cast iron, and plastics.