Draper 71220 PTASDB Step Drill Bit 4-20mm

Step drill bit with 2mm increments perfect for drilling into steel, brass, copper, aluminium, wood and plastics.
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, 20mm.
Display packed.