Faithfull HSS Step Drill Bit 4 to 14mm x 2.0mm
is no longer available although you may find similar or newer versions below:
Sizes 4 to 14 mm
Step drills are used for cutting varying hole sizes in material up to 4 mm thick without changing the drill bit
Max thickness 4 mm.
Made from HSS ( High Speed Steel ).
Shank: 6 mm diameter.