[Features] Ideal for processing stop holes in difficult materials. Accuracy: OH2; Nominal Size: M3; Pitch: 0.02 inches (0.50 mm); Thread Length: 0.4 inches (11 mm); Total Length: 1.8 inches (46 mm); Shank Diameter: 0.1 inches (4.0 mm); Shank Square Part: 0.1 inches (3.2 mm); Bottom Hole Diameter: 0.1 inches (2.5 inches (2.5 inches (2.5 mm); Thread Count: Homo processing: Tap Grade: OH grade Country of Origin: Japan