Draper 53871 SD4-30 Step Drill Bit 4-30mm

Step drill bit manufactured with 2mm increments perfect for drilling into steel, brass, copper, aluminium, wood and plastics.
65.5mm in length and manufactured from good quality high-speed steel, correctly hardened for a longer life.
Drill steps marked at graduations: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30mm.
Perfect for industrial situations and on site work.