SF Fly Fishing Knot Tyer EZ Tie Tool Combo Knot Tying Tool The EZ Tie Combo Tool combines the EZ Tie Knot Tyer witha heavy duty line clipper, an eye cleaner, a hook sharpener and a D-ring to use for easy attachment. Clean-out needle to clear hook eyes An excellent clipper Easy-to-use nail knot tool Durable sharpener and clipper you'll ever need