Fly Fishing Knots: Clinch Knot Video
How to Tie the Clinch Knot
2. Wind the tag end around the standing part of the line by using the thumb and forefinger of your right hand to do most of the work. Use the third finger of your left hand to help pass the tag end around the standing part.
3. Pass the tag end through the loop you have held open in front of the eye. Lubricate the knot with saliva and draw it tight with a quick pull on the fly and the standing part of the tippet. Let go of the tag end when tightening this knot. Trim the tag end very close to the knot.