- Size: This comprehensive threading tool set includes a versatile tool wrench compatible with tap sizes ranging from 1/16" to 1/4" (UNC/UNF) and M1 to M8 (metric). The set features 10 mini metric taps in various sizes: M1 x 0.25, M1.2 x 0.25, M1.4 x 0.3, M1.6 x 0.35, M1.7 x 0.35, M1.8 x 0.35, M2 x 0.4, M2.5 x 0.35, M3 x 0.5, and M3.5 x 0.6. - Material: The tool wrench is crafted from high-quality bearing steel, ensuring exceptional hardness and long-lasting durability. The metric taps are made from M2 high-speed steel, offering a superior combination of hardness, toughness, wear resistance, and heat resistance, capable of producing precise and reliable threads. - Features: The tool wrench boasts a sturdy handle with an adjustable mechanism that securely clamps the jaws for efficient operation and offers high leverage. Its straight groove design facilitates quick chip removal, produces clear threads without burrs, and supports right-handed tapping. - Applications: This threading tool wrench is ideal for manual thread cutting, making it a practical choice for use with drills, reamers, and screw removers. It effectively handles both through holes and flat holes in a variety of materials, including aluminum, mild steel, copper, and hard plastic. Whether you are a hobbyist or a professional technician, this tool set is essential for ensuring precision and reliability in your threading tasks.