Diameter chart, reel capacity & backing guide
J-Fluoro Samurai is Daiwa's clear fluorocarbon mainline in 220-yard filler and 1,000-yard bulk packages. Its filler spool includes a halfway marker at 110 yards. This chart currently includes the coherent 2, 4 and 6 lb rows; the wider manufacturer range remains documented but is held where inch and millimeter columns disagree.
The verified light strengths suit a comparison for light-tackle fluorocarbon working fills. Consider your reel, target and knot requirements before selecting a diameter. The marker on a filler spool helps identify supplied line remaining, but does not measure the amount already wound onto an arbitrary reel.
Clear JFS family. Only three internally coherent published inch/mm pairs are selectable. Other official strength rows retained as specific unit-conflict holds; no inferred corrections.
| Strength | Inches | mm | Spools (yd) |
|---|---|---|---|
| 2 lb | 0.0054 | 0.138 | 220, 1000 |
| 4 lb | 0.0069 | 0.176 | 220, 1000 |
| 6 lb | 0.0083 | 0.212 | 220, 1000 |
The verified 2 lb row is .0054 inch / .138 mm, 4 lb is .0069 inch / .176 mm, and 6 lb is .0083 inch / .212 mm. Each pair is checked at the precision actually printed.
The 5, 7 and heavier listed labels are not absent from Daiwa's range. They are withheld from this chart because their independently published diameter units need clarification.
This is the clear J-Fluoro Samurai range. Hidden Concept and the separate Samurai Braid products are not interchangeable versions of these rows.
Specification-based guidance, not a hands-on J-Fluoro Samurai test. Capacity results are estimates, not measured fills.
Daiwa describes a 110-yard marker on the 220-yard filler spool. It marks half the supplied line, not half your reel's capacity.
Choose sufficient fluorocarbon for casts, runs and repeated reties before calculating backing. With bulk supply, allocate each working length individually.
The verified 6 lb codes are JFS6-220 and JFS6-1000. Similar Samurai names must not be used as substitute product identification.
No. This evidence covers the clear JFS range, not the separately named tinted Hidden Concept product.
Does this mean Daiwa only makes 2, 4 and 6 lb?No. The manufacturer lists more strengths. This chart withholds pairs that cannot be reconciled within the printed unit precision.
Can a generic Samurai Fluorocarbon entry be merged here?Not without establishing its original identity. This page verifies the exact J-Fluoro Samurai name and JFS SKU family.
Checked 2026-09-13 against current product-linked LINES data. Historical official catalog search also repeats the conflicting figures rather than resolving them. The J-Fluoro identity is not silently merged with generic Samurai Fluorocarbon.
Calculations use the catalog's listed inch diameters. Published inch and millimeter values may differ slightly because of rounding.
Diameter chart, reel capacity & backing guide
J-Fluoro Samurai is Daiwa's clear fluorocarbon mainline in 220-yard filler and 1,000-yard bulk packages. Its filler spool includes a halfway marker at 110 yards. This chart currently includes the coherent 2, 4 and 6 lb rows; the wider manufacturer range remains documented but is held where inch and millimeter columns disagree.
The verified light strengths suit a comparison for light-tackle fluorocarbon working fills. Consider your reel, target and knot requirements before selecting a diameter. The marker on a filler spool helps identify supplied line remaining, but does not measure the amount already wound onto an arbitrary reel.
Clear JFS family. Only three internally coherent published inch/mm pairs are selectable. Other official strength rows retained as specific unit-conflict holds; no inferred corrections.
| Strength | Inches | mm | Spools (yd) |
|---|---|---|---|
| 2 lb | 0.0054 | 0.138 | 220, 1000 |
| 4 lb | 0.0069 | 0.176 | 220, 1000 |
| 6 lb | 0.0083 | 0.212 | 220, 1000 |
The verified 2 lb row is .0054 inch / .138 mm, 4 lb is .0069 inch / .176 mm, and 6 lb is .0083 inch / .212 mm. Each pair is checked at the precision actually printed.
The 5, 7 and heavier listed labels are not absent from Daiwa's range. They are withheld from this chart because their independently published diameter units need clarification.
This is the clear J-Fluoro Samurai range. Hidden Concept and the separate Samurai Braid products are not interchangeable versions of these rows.
Specification-based guidance, not a hands-on J-Fluoro Samurai test. Capacity results are estimates, not measured fills.
Daiwa describes a 110-yard marker on the 220-yard filler spool. It marks half the supplied line, not half your reel's capacity.
Choose sufficient fluorocarbon for casts, runs and repeated reties before calculating backing. With bulk supply, allocate each working length individually.
The verified 6 lb codes are JFS6-220 and JFS6-1000. Similar Samurai names must not be used as substitute product identification.
No. This evidence covers the clear JFS range, not the separately named tinted Hidden Concept product.
Does this mean Daiwa only makes 2, 4 and 6 lb?No. The manufacturer lists more strengths. This chart withholds pairs that cannot be reconciled within the printed unit precision.
Can a generic Samurai Fluorocarbon entry be merged here?Not without establishing its original identity. This page verifies the exact J-Fluoro Samurai name and JFS SKU family.
Checked 2026-09-13 against current product-linked LINES data. Historical official catalog search also repeats the conflicting figures rather than resolving them. The J-Fluoro identity is not silently merged with generic Samurai Fluorocarbon.
Calculations use the catalog's listed inch diameters. Published inch and millimeter values may differ slightly because of rounding.
