RUKO 2-blade spiral step drill 30.5mm titanium aluminum 101098F 1 piece

Catalog number: 101098F Features: ● Made of high-quality materials, it allows stable drilling without load or vibration. Applications: ● Cutting materials: Steel plate (strength 1100N/mm2 or less), aluminum, brass, plastic (up to 4mm) Specifications: ● Step width (mm): 4 ● Number of steps (steps): 9 ● Number of blades (pieces): 2 ● Shank diameter (mm): 10 ● Drilling dimensions (φ): 6, 9, 12.5, 15.2, 18.6, 20.4, 22.5, 28.3, 30.5 ● Total length (mm): 80 ● Surface treatment: Titanium aluminum coating Material/Finish: ● High-speed steel