RUKO 2-blade spiral step drill, 1 inch, titanium aluminum, 101705F, 1 piece

Catalog number: 101705F Features: ●High-quality materials are used, allowing for stable drilling without load or vibration. Applications: ●Cutting materials: Steel plates (strength 900N/mm2 or less), brass, plastic (up to 4mm) Specifications: ●Step width (mm): 4 ●Number of steps (steps): 9 ●Drilling dimensions (φ): 5/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 ●Surface treatment: Titanium aluminum coating ●Drilling dimensions: 5/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 ●Shank diameter: 3/8 Material/Finish: ●High-speed steel