SOLID OCTAGON Solid Octagon

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Custom Price List
Custom Price List
Custom Price List
No additional charge for the standard color of dark red
. The other 7 basic colors are 11,000 plus
. Metallic colors are 22,000 plus
. Action Customization

Length, number, taper, etc. from 11,000 except for standard models
. Increase in the number of pieces
24t model 22000/piece 24t model 22000/piece
30t model 27500/piece 30t model 27500/piece
40t model 38500/piece 40t model 38500/piece
40t model 38500/piece
. Various wood species can be selected from 5500 plus and up

. Grip
Basic is Octagrip cigar type
. Customized grips are available from 5500 plus
. Threads

See-through type is available at 5500 plus. See-through type is 5500 plus
. If you have any other requests, please contact us.

. Flexible and crazy machine

PRODUCT - Products -
OCTAGON STANDARD MODEL
12 basic action models that form the basis for custom actions.
There are many reference works including prototypes on display in the showroom.

Only 4 pieces per month are made to order. Only 4 pieces per month are made to order. Delivery time is about one month, but it varies depending on the order status.


Octa Ferrule
The patented (Patent No. 2012-187035) anti-twist ferrule with non-circular cross section features a perfect three-dimensional fit by negatively copying the perfect shape on the female side from the original three-dimensional structure on the male side. The key is how to form a deep octagonal hole in a solid carbon shaft.
This is essentially different from the indirect manufacturing method where the male and female ferrules are precision molded independently, but rather a direct three-dimensional duplication of the male side, followed by separation. This method allows for large-area contact on the ferrule's inner surface. This is completely different from a well-made multi-point contact, as there is no conversion of friction into heat energy, so there is no waste in the transmission of force.


? (1) After mold release treatment is applied around the shaft on the male side of the ferrule, high-strength carbon yarn is formed into horizontal coils
. (2)Cutting (1) into a smooth circular cross section


(3)Cutting (2) into a smooth circular cross section

. (4)Insert (2) into (3) and bond
. (5) Separate (1) and (3)
. (6) (1) and (3) are separated and glued together. The occurrence of twisting is the beginning of loosening. A structure that does not twist is the basis of a ferrule that does not loosen.

. The Octaferrule is a ferrule that allows anglers to focus solely on sharpening their senses, without having to pay any attention to the ferrule all day long.

The Octa ferrule is the best solution to the fate of the ferrule, which is "no twist, no loosening" during use.


The Octa Grip is not a design feature. The Octa Grip is the answer to two problems: "to amplify and transmit even the slightest change in the shaft as a signal to the brain" and "to transmit the input for casting to the fly without the slightest loss of power". The basic principle is to have surface contact to transmit force and point contact to transmit signals. This shape was chosen to satisfy both of these contradictory conditions and to be comfortable in actual use. The Octagrip blocks the twisting force of the rod when casting, allowing the user to more consciously control the characteristics of the octagonal cross section shaft. Think of a tennis or badminton racket, for example. Racquet makers around the world have octagonal cross-sections on their grips for a rational reason.
The Octagrip is the best transmission not only to maximize your chances, but also to connect yourself with nature.

At first glance, it appears to be made of brass, but its golden color is the inherent color of TiN (Titanium Nitride).

The guide is the pathway of hope and power, and is an extremely important item among the elements that make up a rod.

The guides are the most important component of the rod. Extra weight loading must be minimized to take full advantage of the shaft's capabilities.


All OCTAGON guides are made of nitrided beta-titanium, a lightweight, high-strength, highly corrosion-resistant material with a body-centered cubic lattice (pure titanium has a fine hexagonal lattice) and near-superelastic spring properties. It has an extremely low Young's modulus and is flexible, yet remarkably resilient. It never rusts in seawater like stainless steel. All of the stripping guides, one-foot guides, and top guides are handmade by bending and micro TIG welding this beta-titanium wire. In addition, to increase surface hardness and reduce frictional resistance, a permeation nitriding treatment is applied. Unlike coatings such as ion plating or chrome plating, which adhere a thin film to the surface, this treatment method infiltrates the nitriding layer into the material itself, which dramatically improves the durability of the coating.

. Has there ever been a guide with a more minimalist structure? The fly rod guide has been re-invented by the idea of passing the wrapping thread inside the closed ring and securing it to the rod. The conventional snake guide is an excellent fly rod guide that is trouble-free in use. They are lightweight and have a form that makes it easy to untangle line entangled in the rod. However, it was not the ultimate. The structure of fixing the guide to the rod shaft at two points puts a load on the flexibility of the shaft. The increased weight and aerodynamic drag caused by the two fixed points, even if slight, will certainly accumulate and continue to affect performance.
. The Infinity Guide, a one-footed snake, is a twisted form of a closed ring. Made of precision TIG welded and nitrided beta-titanium wire, the Infinity Guide minimizes weight, aerodynamic drag, and load on the rod shaft.
Fixing the guide to the shaft is a very time-consuming process that requires passing each coil of wrapping thread through a ring. But a small investment in advance yields lasting benefits in the future.

. When has there ever been a carbon rod manufacturer that allows you to customize the action, opening the black box between rod maker and angler along with the functional rationale of the OCTAGON is a small revolution.
. OCTAGON is produced with a different philosophy than mass-produced carbon rods.

The OCTAGON is produced with a different philosophy than mass-produced carbon rods: it is made without mandrels (molds) and without prepregs (which have a limited shelf life).


The elements that determine the action of OCTAGON are very simple.


Taper design

Material modulus selection

Guide position and grip thickness are also important, but the action as a pure shaft is determined by the above three factors. There is no need to consider complex factors such as the taper of the core metal and the cut shape and direction of the carbon cloth, resin selection, baking temperature, etc., as with hollow rods.
This simplicity allows the angler to participate directly in the action design. It is possible to create one's own ultimate piece by sharing feedback on sensory-based requirements with shared numerical values. Understanding the cause-and-effect relationship between events should be a joy for the fly fisherman.

As a side note, we are able to flexibly respond to customization other than action because all production processes except for the manufacturing of the materials themselves, such as nitriding of guides and machining of reel seats, are carried out in our workshop.

OCTAGON ? The carbon material used by OCTAGON ? For more information, please visit Toray's TORECA website.

The modulus of elasticity is 24t 30t 40t. The modulus of elasticity is 24t 30t 40t depending on the model and application. The elastic modulus of the thread is decisive in the action design of the rod. Even with the same taper, the action can be surprisingly different depending on the choice of thread.

The material used for the pipe rod is a sheet-like material called prepreg, consisting of longitudinal fibers overlaid with transverse fibers for reinforcement. This is then wrapped around a core and molded. This is the sheet-wrapping molding method.

In fact, the shaft often breaks at the end of its life.

The limit value at which a solid material begins to buckle (pipe collapse) is far beyond the bending limit of a pipe-like rod.


Rod splices

Rod splices OCTAGON ? The basic number of pieces of the OCTAGON ?

The number of pieces is the result of balancing the negative factors of containment and action design.
The number of pieces is the result of balancing the negative effects on containment and action design.


. All reel seats are of the up-lock slide ring type. The design is such that the metal parts and bumps do not touch the palm of the hand when the grip is held as much as possible.


. The Tension Lock Seat is an idea to fix the reel by spring force through the deformation of a thin-walled titanium ring installed inside the cork grip end. The highly springy titanium pipe deforms as the reel foot is inserted, and the elasticity of the pipe gradually wraps around the reel foot. At the same time, the reel foot on the opposite side is slightly lifted from the filler by the reaction. The slide ring restrains the lifted reel foot, creating tension and holding the reel firmly in place.

Polyetherimide Polyetherimide The material of the slide ring parts used by solid octagon for the tension lock sheet is polyetherimide, a super engineering plastic. The amber transparent resin is a flexible material with extraordinary weather resistance and strength. It provides a gentle yet forceful anchoring force while conforming to the shape of the reel foot. It feels like ultra-hard rubber.

The octagonal shape of the ring's outer circumference is machined to aid in the smooth attachment and removal of the reel.

The seat filler is made of various types of wood. Seat filler material can be selected from a variety of woods. All models are made of titanium with all metal parts for use in the sea.

All models are made of titanium.