RUKO 2-blade spiral step drill 1/2 titanium 101707T 1 piece

Catalog number: 101707T Features: ● Made of high-quality material, it allows stable drilling without load or vibration. Applications: ● Workpiece: Steel plate (strength 1100N/mm2 or less), aluminum, brass, plastic (up to 4mm) Specifications: ● Step width (mm): 4 ● Number of steps (steps): 2 ● Drilling dimensions (φ): 3/8, 1/2 ● Surface treatment: Titanium coating ● Drilling dimensions: 3/8, 1/2 ● Shank diameter: 1/4 Material/Finish: ● High-speed steel