General description Adjustable Hand Tap set made of high-quality alloy steel, featuring corrosion resistance, high hardness, and durability. This set includes seven taps of different sizes (M3, M4, M5, M6, M8, M10, M12) to meet various needs, making it suitable for general use. Technical specifications Material: High-quality alloy steel Sizes included: M3, M4, M5, M6, M8, M10, M12 Usage Ideal for hand tapping operations Can be used on soft materials such as iron, aluminum, copper, wood, and plastic Other information Features a non-slip design for easy grip and improved efficiency Knobs can be adjusted conveniently by rotating the handle Sturdy and durable square handle recess with jaws that adjust the tap easily and firmly