[Features] This roll tap allows tapping with no greasing on thin plate steel plates and shorter steel materials that are made of M6 or less. Accuracy: G5; Nominal Size: M2.3; Pitch: 0.02 inches (0.4 mm); Thread Length: 0.3 inches (7 mm); Total Length: 1.7 inches (42 mm); Shank Diameter: 0.1 inches (3 mm); Shank Square Part: 0.1 inches (2.5 mm); Processing Screw: Metric screws; Number of Threads: 4 threads; Country of Threads: 4