General description Faithfull Step drills are designed for cutting varying hole sizes in materials up to 4 mm thick without the need to change the drill bit. Each drill bit allows for the creation of parallel holes within a specific size range, increasing in increments of 2 mm, from 4 mm to 14 mm. Technical specifications Size range: 4 mm to 14 mm Increments: 2.0 mm Maximum thickness: 4 mm Material: High Speed Steel (HSS) Shank diameter: 6 mm Manufacturer Part Number (MPN): FAISD412 EAN: 5023969213637 Other information