Nail Knot Tool – Smitty's Fly Box

Knot Tyer Combo: Comes with one knot tyer and one zinger retractor, easily fit into a pocket., The Knot Tyer can be used to tie various “nail” knots.

SF 2 in 1 Fly Fishing Angler Accessories Magnum Knot Tying Tool

Fly Fishing Gear – Smitty's Fly Box

The 18 Best Flies, According to the Experts - Fly Fisherman

Tools & More – Smitty's Fly Box

Fishing Tools – Smitty's Fly Box

Samsfx Fly Fishing Nippers Line Cutter Clipper Tie Fast Nail Knot

This classic Nail Knot Tying Tool from White River Fly Shop® makes quick work of one of the most common types of fly-fishing knots. You'll want this

White River Fly Shop Nail Knot Tying Tool

Knot Tying Tools & Aids Feather-Craft Fly Fishing

Essentials — Charkbait