Step drill bit with 2mm increments, ideal for drilling into steel, brass, copper, aluminium, wood, and plastics. Manufactured from high-speed steel, it is correctly hardened for extended durability. The drill steps are clearly marked at graduations of 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30mm. This tool offers a length of 65.5mm and is sold individually.