Function: 1 Excellent workmanship, the tap has high hardness and high abrasion resistance. 2. This product has excellent applicability, stability, processing efficiency, average life and so on. 3 Suitable for the processing of iron, steel, copper, aluminum, mold steel and other materials. 4 The length of the tap is 12mm and the diameter of the shank is 1.2mm, making it a perfect replacement for the old one. 5 Easy to use, good performance, small size, easy to carry and store. Specifications: Item Type: Machine Tap Screw Diameter Size: M22 System: Metric Thread Tolerance Grade: H2 Material: High Speed Steela> Length: Approx. 0.5 inches (12 mm) / 0.5 inches (1.2 mm) / 0.05 inches (1.2 mm) / Package List: 3 x machine taps.