Irwin HSS Pro Drill Bits

The Irwin HSS Pro Drill Bit in 4mm diameter is supplied in a bulk pack of 10, making it an economical option for professionals who regularly use this popular general-purpose size. The 4mm diameter is widely used across construction, metalworking, and joinery applications, particularly for standard fixing holes and general fabrication work. Featuring high-quality HSS steel construction, this drill bit is engineered to withstand demanding professional use. 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 for efficient, clean drilling. Features and Benefits: • 4mm diameter for general-purpose drilling tasks • Bulk pack of 10 provides excellent workshop value • High-quality HSS steel construction ensures durability • Precision ground cutting edges for fast drilling and perfect finishing • Ground flute ensures maximum accuracy and fast chip removal • Universal 118° point shape suitable for multiple materials Specifications: Tip Diameter (mm): 4.0 Working Length (mm): 43 Overall Length (mm): 75 Pack Qty.: 10 Drillbit diameter: 4.0mm Total length: 75mm