1. Product Overview
The Daiwa Interline Sea Flex 64 80-350 is a high-performance fishing rod designed for ease of use and reliability, incorporating Daiwa's original components. It features an interline design that minimizes line tangles, a comfortable V-grip seat, and a robust tip section. This rod is suitable for various fishing styles, offering excellent biting sensitivity and a supple mooching action.
2. Key Features
2.1. Interline Design
The interline (internal line) structure eliminates common issues such as line tangles around guides and problems with multi-point rigs like sabiki, ensuring a smooth and comfortable fishing experience. The tip section features a linear interline with a spiral structure for smooth line release, reducing operational troubles.

Image: The Daiwa Interline Sea Flex 64 80-350 fishing rod, showcasing its overall design and interline construction.
2.2. Removable Lightweight Resin Top Guide
The top guide, which is most prone to accumulating hard-to-remove dirt such as plankton and jellyfish, is designed to be removable. This feature significantly simplifies maintenance and cleaning of the rod tip.

Image: Close-up of the rod tip showing the removable lightweight resin top guide, designed for easy cleaning and maintenance.
2.3. Entrance Guide System
The rod incorporates a dual entrance guide system. This includes an oval guide attached to the main rod body and a round guide at the introduction section. These guides work together to ensure the line functions without damage, whether the rod is extended or retracted.

Image: Detail of the rod's entrance guide system, illustrating the oval and round guides that facilitate smooth line movement.
2.4. Anti-Tangle Bottom Cap
Located below the middle section (the section that retracts into the butt section), a bottom cap with an integrated guide is present. This, combined with an anti-tangle mechanism on the cap, prevents the line from being damaged when it folds near the cap during rod retraction.
2.5. V-Grip Seat
The rod features a newly designed V-grip seat, which is easy to hold and offers superior operability. This ergonomic design contributes to comfortable hand-held fishing, reducing fatigue during long sessions.

Image: Close-up of the V-grip seat, highlighting its ergonomic design for improved handling and comfort.
3. Setup Instructions
3.1. Rod Assembly
- Extend all sections of the rod firmly until they are fully seated. Ensure no looseness between sections.
- Attach your fishing reel securely to the V-grip reel seat.
3.2. Line Threading (Top-in Mechanism)
The Daiwa Interline Sea Flex 64 utilizes a convenient Top-in Mechanism for line threading:
- Ensure the rod is fully extended.
- Insert the provided wire (or a suitable threading wire) from the top guide of the rod.
- Guide the wire through the internal channels until it emerges from the entrance guide near the reel seat.
- Thread your fishing line through the loop or eyelet of the wire that has emerged from the entrance guide.
- Gently pull the wire back from the top guide, drawing the fishing line through the rod's internal channels until it exits the top guide.
- Remove the threading wire and tie your terminal tackle to the fishing line.
4. Operating Instructions
4.1. General Use
This rod is designed for comfortable hand-held fishing, offering a supple mooching action. Its interline design minimizes line tangles, allowing for more focus on fishing. The rod can be extended and retracted even with the rig still set, which is highly convenient for transport, especially when moving to and from a boat.
4.2. Casting and Retrieval
Utilize the rod's smooth line release capabilities for efficient casting. The V-grip seat provides a secure and comfortable hold during retrieval, even when handling heavy loads.
5. Maintenance
5.1. Cleaning the Rod
- After each use, especially in saltwater, rinse the entire rod thoroughly with fresh water.
- Pay special attention to the interline channels. You can use a thin brush or the threading wire to gently clean the inside of the rod to remove any salt, sand, or debris.
- Wipe the rod dry with a soft cloth.
5.2. Removable Top Guide Maintenance
- Periodically remove the top guide for thorough cleaning. This is particularly important for removing stubborn dirt like plankton or jellyfish residue.
- Clean the guide and its seating area with fresh water and a soft brush.
- Ensure the guide is completely dry before reattaching it securely.
5.3. Storage
Store the rod in a dry, cool place, away from direct sunlight and extreme temperatures. Use a rod bag or case to protect it from physical damage.
6. Troubleshooting
6.1. Line Not Flowing Smoothly
- Check for Debris: The interline design is resistant to clogging, but check the tip (3.0mm inner diameter) and internal channels for any debris, such as small pieces of weed or dirt. Use the threading wire to clear any obstructions.
- Line Condition: Ensure your fishing line is not twisted, frayed, or damaged, which can impede smooth flow.
6.2. Rod Sections Sticking
- Clean Joints: Dirt or salt can cause sections to stick. Clean the joint areas thoroughly with fresh water and dry them.
- Gentle Twisting: When disassembling, apply gentle, firm twisting pressure rather than pulling directly. Avoid excessive force.
6.3. Line Damage Near Bottom Cap
- Inspect Anti-Tangle Cap: Ensure the anti-tangle bottom cap is properly seated and its guide is clear of obstructions.
- Retract Carefully: Always retract the rod sections carefully to prevent the line from snagging or being pinched.
7. Specifications
Specifications for the Daiwa Interline Sea Flex 64 80-350 model:
| Specification | Value |
|---|---|
| Product Name | Sea Flex 64 80-350 |
| Overall Length | 3.50 m |
| Number of Sections | 4 |
| Closed Length | 96 cm |
| Weight | 320 g |
| Tip Diameter / Butt Diameter | 3.0 mm / 21.4 mm (Material tip diameter: 3.7 mm) |
| Lure/Sinker Weight (Japanese 'go' equivalent) | 80-120 (approx. 300-450g) |
| Carbon Content | 71% |
| Compatible Clamp Size | M |
Note: Specifications are subject to change without prior notice.
8. Warranty and Support
For warranty information and customer support, please refer to the documentation provided at the time of purchase or visit the official Daiwa website. Keep your proof of purchase for any warranty claims.







