FAITHFULL 6-30mm STEP DRILL FAISD630

Faithfull Step drills are used for cutting varying hole sizes in material up to 4 mm thick without changing the drill bit. Each drill cuts parallel holes within a specific size range, rising in 2mm increments. Sizes 6 to 30 mm. Increments of 2.0 mm. Max thickness 4 mm. Made from HSS ( High-Speed Steel ). Shank: 10 mm diameter.