What is the pin in the bottom of this nail knot tying tool used

Samsfx Fly Fishing Nippers Line Cutter Clipper Tie Fast Nail Knot Tyin – Bargain Bait Box

What's the best use of this pouch on the tool belt suspenders? : r

2 for $25.99 – The Knot Kneedle

A short film showing how to use a Nail knot tool

How to Tie a Knot in Thread for Hand Sewing - Create Whimsy

Dr. Slick Co • Instructions

Should I cut and use a nail knot or try to save it? : r/flyfishing

Fish Whistle Nail Knot Tool - Rising

3 Options For Attaching A Leader To Your Fly Line - Fly Fishing, Gink and Gasoline, How to Fly Fish, Trout Fishing, Fly Tying

Beading Wire Knotter Pearl Jewelry Making Knotting Tool - Temu

Tool Hooks Fishing Flies, Fly Fishing Quick Knot Tool

SAMSFX Fast Tie Nail Knot Tying Tool and Loop Tyer Hook Tier – samsfxfishing