[Features] Used for processing pipe taper screws. Accuracy: JIS Class 2; Nominal Size: 1; Number of Threads: 11; Thread Length: 1.3 inches (33 mm); Total Length: 4.3 inches (109 mm); Shank Diameter: 1.0 inches (26 mm); Shank Square: 0.8 inches (21 mm); Bottom Hole Diameter: 1.1 inches (29 mm); Processing: Non-coating; Country of Origin: Japan