Hook: Curved emerger hook. Can use Tiemco 200R but Daiichi 1150 used here.
Thread: Brown 8/0 Uni Thread
Wingpost: Smoke Grey or White Hi-Vis
Body: Grey Squirrel or substitute
Tail (shuck): small piece of crystal flash
Hackle: Brown or Ginger

Overview

The Klinkhammer as many of you will know evolved from the vice of Dutch flytier Hans Van Klinken. His remarkably simple emerging caddis pattern has been adapted world wide to represent all sorts of emerging aquatic insects in various colours and sizes. This fly is highly visible and works in all our rivers and in bigger, chocolate coloured versions, really is deadly in most lakes.

Use when fish are breaking the surface with their backs early in the hatch, not taking from the top but rather the emerging insects struggling in the film. There may be a few duns about and yet the fish will not take them. This is because they are locked onto the emerging mayfly. Try this pattern and see how you go. Also tie a few in a chocolate brown. Takes will often be very subtle.