Manufacturer Name: Maima, Co., Ltd. [Features] Standard pipe tap and is used when the screw part is not sufficient. Uses: Medium and high carbon steel, cast steel, cast iron, ductile cast iron, aluminum alloy casting. Specifications: Accuracy: JIS2 Grade Nominal Size: 1 Thread Length: 1.4 inches (35 mm) Total Length: 3.7 inches (95 mm) Shank Diameter: 1.0 inches (26 mm) Shank Square Part: 0.8 inches (21 mm) Bottom Hole Diameter: 1.1 inches (29.5 mm) Processing: Non-coated Tap Grade: JIS Grade [Material/Finish] / High Speed Steel (HSS-E/High Speed HSS)