Features High hardness and anti-rust properties ensure durability for drilling, tapping, and cutting soft metals, aluminum plates, and iron. Self-centering point eliminates the need for center drilling or center punching, making it easier to start drilling accurately. Integrated drilling and tapping design saves time and effort by combining two processes into one, increasing work efficiency. Unique design allows for drilling, tapping, and chamfering simultaneously, reducing the number of steps required for a perfect finish. Accurate ground point, flutes, body, clearance, and drill diameters guarantee optimal precision and performance. Specifications: Material: High-speed Steel (HSS) Suitable for soft metal, aluminum, iron Size: M5 x 0.8: Total length: 58mm, Spiral length: 28mm, drill diameter: 4.2mm Handle: 6.35mm (Notice: Manual measurement may be a little error please understand!) Package include: 1 x Hexagonal Handle Compound Tap Drill Bits Package List