Features High Hardness and Durability -- Made from high-speed steel (HSS), this tap drill bit is highly durable and can withstand drilling, tapping, and cutting of soft metals, aluminum plates, and iron, providing long-lasting performance. Self-Centering Point -- The self-centering point eliminates the need for auxiliary center drilling or center punching, making it easier to start drilling and reducing the chance of slipping or misalignment Self-Centering Point -- The self-centering point eliminates the need for auxiliary center drilling or center punching, making it easier to start drilling and reducing the chance of slipping or misalignment Versatile Application -- Suitable for use on soft metals, aluminum, and iron, this tap drill bit offers versatility in various applications, making it a valuable tool for both professionals and DIY enthusiasts. Accurate Ground Design -- The tap drill bit features accurately ground point, flutes, body, clearance, and drill diameters, ensuring optimal accuracy and performance during drilling and tapping operations. Features:1. High hardness, anti-rust, strong and durable, suitable for drilling, tapping and cutting of soft metals, aluminum plates, iron, etc. 2. Self-centering point, no need for auxiliary center drilling or center punching. 3. Drilling and tapping integrated, one-step processing, greatly saves processing steps and time costs, and improves work efficiency. Specifications: Material: High-speed Steel (HSS) Suitable for soft metal, aluminum, iron Size: M3 x 0.5: Total length: 55mm, Spiral length: 24mm, drill diameter: 2.5mm 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