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 20 mm. Increments of 2.0 mm.
Max thickness 4 mm.
Made from HSS ( High-Speed Steel ).
Shank: 6 mm diameter.
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