How to Tie the GT Brush Fly

Mar 02, 2022 · 3 min read

Learn how to tie the GT Brush fly pattern including step-by-step instructions, a video tutorial, pictures, and much more. Improve your fly tying skills here.

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Bulky, swimmy, and realistic, this GT Brush Fly is an excellent choice for giant trevally anywhere they call home. A large-profile fly, you can adapt this GT Brush Fly to fit any color scheme you like, and while it was tied with trevally in mind, it's a pattern that you can effectively throw for any apex predator ranging from striped bass, bluefish, snook, tarpon, musky, and more. Whether you're casting into a deep blue atoll or freshwater river system, you can count on this fly to produce true predators.

Materials:

We've put together a kit that contains all the materials you need to tie this exact fly pattern.

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Hook: Gamakatsu SC15-2H 2X Strong Wide Gap Hooks (size: 5/0)
Thread: Danville Monofilament Thread (size: .006)
Tail: Bucktail (color: black) and Four Strung Saddle Hackle Feathers (color: black)
Body: Bucktail (color: black)
Flash: Hedron Dyed Pearl Flashabou
Head: Enrico Puglisi Foxy Brush (color: Black; size: 3")
Eyes: Pro Sportfisher Tabbed Eyes (size: 14mm)

Buy Material Kit

Step One

Silver curved fly hook clamped in black vise, barbed point and long shank for GT Brush fly tying, metal finish

Begin the pattern by laying a thread base down.

Step Two

Black GT Brush fly with long marabou tail and dense brush collar on a silver tube shank clamped in a fly-tying vise

Loosely tie on the tip ends of black bucktail material above the hook's bend to start the tail section.

Step Three

Hand pinching black synthetic hair to tie a GT Brush Fly on a silver hook in a vise, close-up fly tying

Rotate the bucktail fibers around the shank while applying pressure on the material with your fingers, then crank down on the thread.

Step Four

Black GT Brush fly with marabou-style tail and silver tube shank clamped in vise for fly tying tutorial

Pull the tip end fibers back and make several tight wraps in front of the material.

Step Five

Close-up of black GT Brush fly with marabou feathers tied to a silver hook eye for fly fishing

Tie two feathers opposite each other on both sides of the shank.

Step Six

Close-up of black GT Brush fly being tied: fluffy marabou feathers secured on metal hook with vise, fly tying

Rotate the rotary vice, tie two additional feathers on the shank's bottom, then trim the stems.

Step Seven

Black GT Brush fly with iridescent green flash, silver tube head and barbed hook held in vise, fly-tying thread

Tie four strands of Flashabou at the material's center, next to the side feather. Fold the fabric on the opposite side of the shank and tie it on.

Step Eight

Black GT Brush fly with long marabou brush tail and silver bead head secured in vise during fly tying

Loosely tie on another pencil's width of bucktail material on top of the shank, then rotate the fibers around the shank while applying pressure to the ends.

Step Nine

Close-up GT Brush Fly tied with black marabou and silver flash on a silver hook in a fly-tying vise

Tie on four additional strands of Flashabou near the bucktail, then pull the material to the other side and tie it down.

Step Ten

Black GT Brush Fly with iridescent green flash fibers and dense brush tail tied on hook, macro fly tying detail

Tie on another clump of bucktail fibers on top of the shank. Once again, start with loose wraps while you twist the material around the shank, then clamp down.

Step Eleven

Black GT Brush fly with silver-wrapped head and blue flash fibers clamped in vise as fly tying tool threads the hook

Trim the outward-facing excess material, sweep the fibers back, then run the thread along the pattern's neck for a clean look.

Step Twelve

Black GT Brush fly with glossy black hair, silver thread head and exposed hook, close-up fly tying for fly fishing

Begin the head by tying on the EP Brush material by the stem, below the hook's eye.

Step Thirteen

Black-brown GT Brush Fly with bushy marabou and iridescent flash fibers on hook in vise - fly tying streamer

Take the tip end of the EP Brush, sweep the fibers rearward, and wrap up the shank to the eye.

Step Fourteen

Black GT Brush fly with shaggy synthetic fibers, green/red flash strands and silver bead head, fly tying

Clean up the fly by running the thread along the shank's neck and combing the brush material.

Step Fifteen

Close-up black GT Brush fly with synthetic black fur, iridescent abalone eye and silver metal weed guard for fly fishing

Tie on the Pro Sportfisher Tabbed Eyes below the hook's eye, then clip the forward-facing material off.

Step Sixteen

Black GT Brush fly streamer with iridescent green eye, silver cone head and long synthetic black hair for fly tying

Finish the pattern by securing a half-hitch followed by a whip finish.

Written by

Stephen D' Angelo

Stephen D'Angelo is a fly fishing expert with a passion for fly tying, gear, and time on the water. From small-stream trout to saltwater flats fishing, Stephen brings hands-on experience across a wide range of species and scenarios — and he's always happy to help you find the right setup for your next adventure.

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