Spiral Flute Tap: 1/4-28 UNF, 3 Flutes, Plug, 3B Class of Fit, High Speed Steel, Bright/Uncoated MPN:28521

Fraisa's spiral flute tap is a high-speed steel (HSS) tool ideal for various machining and tooling applications. Its UNC 28 threads are suitable for tapping light to medium-duty holes in materials such as plastics, soft metals, aluminum, brass, bronze, and cast iron. The tap's plug style ensures easy start-ups while its three flutes facilitate efficient chip removal during the threading process. The 3B class of fit provides a high level of strength and durability for precision machining applications. Overall, Fraisa's spiral flute tap excels in various industries including automotive, aviation, aerospace, and general machinery maintenance where precision and efficiency are vital.