[Features] Equivalent to the new JIS level 9 to 10. Module 0.5, pressure angle 20° (parallel teeth). Number of Teeth: 2.4 inches (60 mm); Standard Circle Diameter: 1.2 inches (30 mm); Tooth Width: 0.08 inches (2 mm); Hole Diameter: 0.1 inches (3 mm); Weight: 0.5 oz (14.8 g); Country of Origin: Japan