Thread Forming Tap: #4-40 UNC, 3B Class of Fit, Bottoming Chamfer, High-Speed Steel, Titanium Nitride Finish MPN:10723-01T

The Thread Forming Tap: #4-40 UNC features a 2/3B class of fit for high precision machining applications, while the bottoming tap design ensures better alignment during thread formation. Made from high-quality high speed steel (HSS) and Titanium Nitride coated for durability and longevity, this tap is ideal for use in steel, cast iron, brass, aluminum, and stainless steel materials. The 4-40 UNC thread size makes it suitable for various machining and tooling applications such as screw assembly and fixture making. The TiN coating increases wear resistance, reduces friction, and prevents galling to ensure smooth performance and longer life.