ALPEN 2-blade spiral step drill, 20mm, high speed steel, 72201220, 1 piece

Catalog number: 72201220 Features: ● An easy-to-use two-blade spiral step drill with stable workability. Applications: ● Workpiece: Iron (4-6 mm) Specifications: ● Step width (mm): 4.5 ● Number of steps (steps): 9 ● Number of blades (pieces): 2 ● Shank shape: Straight ● Shank diameter (mm): 8 ● Drilling dimensions (φ): 4, 6, 8, 10, 12, 14, 16, 18, 20 ● Overall length (mm): 75 ● Surface treatment: Non-coated ● Non-coated Material/Finish: ● High-speed steel