HSS Pro Drill long series drill bits have a body manufactured from high quality HSS steel and have a bright finish. The drill bits have precision ground cutting edges which enable fast drilling and ensure perfect finishing. They have a ground flute for maximum accuracy and fast chip removal. The universal 118º point shape makes the drill bits suitable for drilling a wide selection of materials. They are perfect for drilling low carbon steel, soft metals, wood and plastics. They are manufactured to DIN 340 standards and have a cylindrical shank. The Irwin HSS Long Pro Drill Bits come in a bulk pack of 10. Specification: Diameter: 4.5mm Total length:85mm Working length: 85mm. IRW10502487