The HSS (High-Speed Steel) Metric Tap is a versatile tool designed for tapping or threading holes in various materials. Key Features: Spiral Flutes: Enhances chip clearing during tapping, preventing clogging for smooth operation. Chamfering and Tapping Combined: Performs both chamfering and threading in one step, saving time and effort. Compatibility: Suitable for use with hand drills, bench drills, and hex chuck tapping machines. Wide Range of Materials: Effective on wood, plastic, aluminum, tin alloy, and magnesium alloy (workpiece thickness Available Sizes: M3, M4, M5, M6, M8, M10 .