General description Our 6pcs Tap Drill Set is designed for versatility and efficiency, featuring a range of taps suitable for various materials including wood, plastic, aluminum, and copper. Made from high-speed steel (HSS), these bits offer high hardness and durability, ensuring long-lasting performance. The set includes taps in sizes M3 (3mm), M4 (4mm), M5 (5mm), M6 (6mm), M8 (8mm), and M10 (10mm), making it ideal for different tapping threads. Technical specifications Material: High Speed Steel (HSS) Thread sizes: M3, M4, M5, M6, M8, M10 Hand diameter: 6.2mm Suitable for material thickness: 3-5mm Usage Ideal for drilling and cutting soft metals, aluminum panels, iron, wood, and plastics. For optimal performance, apply oil before use to ensure smoother operation and extend the life of the tap. Note: Not recommended for use with hard metals. Other information The tap drill bits feature a nano blue coating for an elegant appearance and improved aesthetics. The spiral groove design