ALPEN 2-blade spiral step drill, 12mm, high speed steel, 72200412, 1 piece

Catalog number: 72200412 Features: ● An easy-to-use two-blade spiral step drill with stable workability. Applications: ● Workpiece: Iron (4-6 mm) Specifications: ● Step width (mm): 4 ● Number of steps (steps): 9 ● Number of blades (pieces): 2 ● Shank shape: Straight ● Shank diameter (mm): 6 ● Drilling dimensions (φ): 4, 5, 6, 7, 8, 9, 10, 11, 12 ● Overall length (mm): 65 ● Surface treatment: Non-coated ● Non-coated Material/Finish: ● High-speed steel