Extremely impressive fly for all trout fishing and has been uses as well in salmon fishing.

The Klinkhammer is a popular fly that works well on many freshwater species, on the surface or just below the surface. It was designed by the Dutchman Hans van Klinken and intended to imitate caddis or May flies that are coming to the surface. Klinkhammer is often used as an extra fly with a nymph and then often acts as some kind a striking indicator.