Spiral Flute Tap: #4-40, UNC, 3 Flute, Bottoming, 2B Class of Fit, Cobalt, Oxide Finish MPN:5974490

The Spiral Flute Tap: #4-40, UNC, 3 Flute, Bottoming, 2B Class of Fit, Cobalt, Oxide Finish is a top-performing tap known for its ability to reduce chip load on each pass. Its 3 flutes offer excellent chip evacuation while maintaining thread accuracy and dimensional stability. The bottoming feature creates strong internal threads without burr formation, which makes it suitable for applications requiring close tolerances. This cobalt spiral flute tap's oxide finish adds lubricity, further improving its performance during thread milling operations. Due to its high-quality construction and compatibility with a broad range of materials, this spiral flute tap is widely used in industries such as aviation, automotive, and electronics, making it a popular choice within DORMER's product lineup.