S1 · Size 4 on handwritten card
The hook lies loose below the writing. Size 4 comes from the handwriting; no manufacturer marking confirms it. The hook in the side-view photograph is probably the same hook.
What the label says
Daiichi: 2220
Size: 4
Daiichi 2220
Evidence reviewed October 27, 2026. Marks: P photographically · V verified · I inferred · E estimated · S speculative What they mean
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Summary
The Daiichi 2220 is a streamer hook. Dealer listings give it a 4X-long shank V.
The entry rests on photographs of one size 4 specimen and on dealer listings. The specimen lies on a handwritten card, and no manufacturer packaging, printed label or hook marking is recorded. Its model code and size therefore come from that handwriting.
Photographic record
2 photographs · Hold Ctrl and scroll to zoom · drag to pan · double-click for 100%
IMG-1Daiichi — New entry — image 1 Size 4 specimen, side view on graph paper (P).
How to identify it
The photographed hook shows no stamp, logo or printed text P. Identification therefore rests on form: a long, plain, straight shank, a round bend and a closed eye turned down.
Those features alone do not name a maker or model. A manufacturer package or printed label would document both.
Technical profile and measurements
| Feature | Recorded | Evidence |
|---|---|---|
| Eye | Ball Eye, Turned DownShow noteHide noteClosed eye turned down, made by bending the wire end back to the shank P. A small seam shows at the neck. Taper cannot be judged edge-on. | OBS-1SRC-4 |
| Wire | Heavy (1X Heavy), Forged | |
| Shank | 4X Long — Plain | |
| Bend | Limerick, Narrow gapShow noteHide noteSmooth, continuous round bend with no straight section P. Dealers list a round bend V. Bend position falls closest to Limerick proportions in the site's catalog I. | CMP-2OBS-2SRC-1SRC-5CMP-2 compared with 81 catalogued hooks classified Limerick |
| Point | Standard / SpearShow noteHide noteOne small, low barb cut on the inner side of the point, projecting back toward the bend P. | OBS-4 |
| Finish | Bronzed — stated on packagingShow noteHide noteEven dark gold-brown, bronze-colored finish over the whole hook P. Dealers list the finish as bronze or bronzed V. The photographs do not show how it was applied. | OBS-6SRC-1SRC-4 |
Dealer listings give the 2220 a 4X-long shank and 1X heavy wire V. On the photographed size 4, shank proportion and wire thickness fall closest to the 4X-long and 1X heavy groups in the site’s catalog I.
Two dealer listings call the hook forged V. Forging presses the wire flat in places, usually at the bend, for strength. The side-view photographs cannot show this, and they cannot show any offset of the point P.
The point is long and slender and tapers to a sharp tip P. One dealer says Daiichi hooks use a 12-degree constant-taper ground needle point V. That wording covers the brand, not this model alone.
Measurements
| Size | Overall length | Shank length | Gap width | Bend depth | Wire diameter | Weight |
|---|---|---|---|---|---|---|
| 4Specimen S1 | 37.9 mm EcaliperMEA-1 | 32.3 mm EcaliperMEA-2 | 8.3 mm EcaliperMEA-3 | — | 1 mm EcaliperMEA-4 | — |
Calibrated SVG
True-scale preview
- Overall length
- Eye to the farthest point of the bend.
- Shank length
- Eye to the start of the bend.
- Gap
- Point to shank, at right angles to the shank.
- Bend depth
- Shank to the bottom of the bend.
- Wire diameter
- Across the wire, measured by caliper where possible.
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Specimens, packaging, and label
This record documents one specimen. It describes that specimen only, not every example of the model.
Pattern history and manufacturer context
Daiichi Read the maker’s history →
Use
Primary application
Dealer listings assign the 2220 to streamer tying V.
Fly patterns
Muddlers, woolly buggers, zonkers, bucktails V
Collecting and buying
Rated 1.5, common. Wide availability from dealers earns the low rating V; no source records scarcity, age or collector demand that would raise it.
Basis: Offered new by several dealers V. No source records scarcity or collector demand.
Dealer listings offer the 2220 new, so examples are easy to find V. No source in this record gives production dates, a discontinuation, a count of surviving examples or a collector following.
No sold results are recorded for this model, so no value range is shown.
Where to find
Fly-tying dealers sell the 2220 new V.
Modern equivalents and related hooks
Best matchRelated by Attribute
| Silhouette | Hook Model | Match | Analysis | Compare |
|---|---|---|---|---|
 | 2271 No. 1 | 85% | Compare | |
 | 36862 No. 8 — Limerick Hooks | 81% | Compare | |
 | S 1056 | 73% | Compare | |
 | 8319 No. 2/0 (V) — Mustad 8319 | 71% | Compare | |
 | YL-HP-6x No. 12 — Yellow Label - HP Sproat 6x Long | 70% | Compare |
ExploratoryRelated by Shape (SVG)
Sources, open questions, and record notes
Sources & Documentation
This specimen and its packaging — photographed, 2 images
Supports: bendeyebarbfinishoverall lengthshank lengthgap widthwire diameter measuredmeasurement notesmeasurements availablepackagingis snelledmeta descriptionsummarytechnical notesidentification
- Daiichi 2220 4X-Long Streamer Hooks | Trident Fly Fishing VSupports: Shank Length Category, Wire Gauge, Wire Profile, Finish, Eye Orientation, Hook Type / Application, Fly Patterns, Quantity per Package.
- Daiichi 2220 4X Long Streamer Hook | Angler Sport Group listing on Scheels VSupports: Shank Length Category, Wire Gauge, Wire Profile, Finish, Quantity per Package, Fly Patterns.
- Daiichi Hook Model 2220 | TW Outdoors VSupports: Wire Gauge, Shank Length Category, Finish, Eye Orientation, Point Style, Tech Specs Notes.
- Daiichi 2220 Streamer Hook | Stone River Outfitters VSupports: Eye Notes, Eye Type, Wire Gauge, Finish, Shank Length Category.
- Daiichi Down-Eye Streamer Hook 2220 | Minnesota Fly Fishing (Driftless Fly Fishing Company) VSupports: Bend Family, Eye Type, Wire Gauge.
Entry last updated October 27, 2026. Entries are updated as new specimens, measurements, or documents come to light.