Features: Standard pipe taps are used when the extension length is not sufficient. Applications: ● Machining material: medium and high carbon steel, cast steel, cast iron, ductile cast iron, aluminum alloy casting. Specifications: Accuracy: JIS 2 grade Nominal Size: 3/8 Number of Threads: 19 Thread Length: 0.8 inches (21 mm) Total Length: 5.9 inches (150 mm) Shank Square Part: 0.4 inches (11 mm) Bottom Hole Diameter: 0.6 inches (14.5 mm) mm mm) Thread Thread Thread Thread Thread Thread Thread Thread Thread Tap Grade: JIS Grade (HIS Grade High Speed Steel SS-E)