Made of high-speed steel, with high hardness and wear resistance, not easy to break Black oxide surface treatment, good rust resistance long durability. Morse taper allows the drill to be mounted directly into the machine's spindle to facilitate high torque applications. Taper shank drills are fit for general drilling applications in industrial fields. Suitable for wood, malleable iron, aluminum, plastic, etc. Specification:Taper Size: MT1Cutting Diameter: 13.6mm / 0.54-inchCutting Length: 100mm / 3.94-inchTotal Length: 190mm / 7.48-inchMaterial: High Speed Steel (HSS)Finish: Black OxidePackage Content:1 x Morse Taper Drill Bit