|Vermont Spiral Fluted Taps (also known as Helical Fluted Taps) are
designed to provide efficient chip ejection in a wide variety of soft
materials such as aluminum, copper, brass, magnesium, die casting
metals, and steel in which stringy chips are generated. These taps are
particularly useful in threading deep or blind holes, and in bridging
keyways or other interruptions in the surface of holes being tapped.