Features High Hardness and Durability -- Made of high-speed steel (HSS), these TapTaperDrillBits are exceptionally hard, rust-resistant, and durable. They can effectively drill, tap, and cut soft metals, aluminum plates, and iron, providing long-lasting performance. Self-Centering Point -- The TapTaperDrillBits feature a self-centering point, eliminating the need for auxiliary center drilling or center punching. This saves time and effort, allowing for more efficient drilling and tapping processes. Integrated Drilling and Tapping -- With their unique design, these TapTaperDrillBits allow for one-step processing of drilling, tapping, and chamfering. This greatly reduces processing steps and time costs, increasing work efficiency. Accurate Ground Design -- These TapTaperDrillBits are precision-engineered with accurate ground points, flutes, body, clearance, and drill diameters. This ensures the best accuracy and performance, making them ideal for professional use. Versatile and Compatible -- Suitable for soft metal, aluminum, and iron, these HexHandleTapDrillBits are compatible with a wide range of materials and applications. Perfect for various drilling and tapping projects, they offer versatility and convenience. Specifications: Material: High-speed Steel (HSS) Suitable for soft metal, aluminum, iron Size: M10 x 1.5: Total length: 59mm, Spiral length: 20mm, drill diameter: 8.5mm 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 1 x Hexagonal Handle Compound Tap Drill Bits