PRODUCTS
1166FM / 1166FA Open-End Gear Ring Wrench – Reversible, Offset | Metric & SAE Sizes
1166FM / FA Reversible Open-End Gear Ring Wrench – Slim Profile, Offset, 72 Teeth
- Llave Combinada Abierta y de Trinquete Reversible – 1166FM / FA
- Clé Mixte à Cliquet Réversible – 1166FM / FA
- Offener Ringschlüssel mit Ratsche – 1166FM / FA
- Klucz Otwarty z Grzechotką – 1166FM / FA
- 1166FM / FA 雙頭棘輪開口扳手（公制與英制）
- 1166FM / FA 双头棘轮开口扳手（公制与英制）
- مفتاح مشترك مفتوح مع ترچ قابل للعكس – 1166FM / FA
- Chave de Boca com Catraca Reversível – 1166FM / FA
- Cờ Lê Đầu Mở Có Ratchet Đảo Chiều – 1166FM / FA
- ประแจปากเปิดแบบมีเฟืองกลับทิศ – 1166FM / FA
- An-Lock Drive® (Superb Torque)
- Wrench all we can support
| 1166FM (mm) | W (mm) | W1 (mm) | T (mm) | T1 (mm) | L (mm) |  g |  pcs |
|---|---|---|---|---|---|---|---|
| 6 | 17.4 | 17 | 7.4 | 4.9 | 136 | 38 | 12 |
| 7 | 17.4 | 17 | 7.4 | 4.9 | 136 | 38 | 12 |
| 8 | 17.4 | 17 | 7.4 | 4.9 | 136 | 38 | 12 |
| 9 | 20.8 | 20.8 | 7.4 | 5.8 | 158 | 60 | 12 |
| 10 | 20.8 | 20.8 | 7.4 | 5.8 | 158 | 60 | 12 |
| 11 | 23.4 | 25.1 | 8.7 | 6.2 | 175 | 70 | 12 |
| 12 | 23.4 | 25.1 | 8.7 | 6.2 | 175 | 85 | 12 |
| 13 | 24.9 | 27.2 | 8.7 | 6.4 | 185 | 95 | 12 |
| 14 | 27.4 | 29.3 | 8.7 | 7 | 193 | 105 | 12 |
| 15 | 30.4 | 33 | 10.3 | 7.4 | 213 | 130 | 12 |
| 16 | 30.4 | 33 | 10.3 | 7.4 | 213 | 150 | 12 |
| 17 | 31.9 | 35.2 | 10.3 | 8.2 | 231 | 190 | 12 |
| 18 | 34.5 | 39.4 | 10.6 | 9 | 249 | 190 | 12 |
| 19 | 34.5 | 39.4 | 10.6 | 9 | 249 | 190 | 12 |
| 20 | 42.6 | 45.7 | 13 | 9.5 | 280 | 380 | 12 |
| 21 | 42.6 | 45.7 | 13 | 9.5 | 280 | 380 | 6 |
| 22 | 42.6 | 45.7 | 13 | 9.5 | 310 | 380 | 6 |
| 23 | 46.5 | 51.7 | 13.5 | 10 | 310 | 520 | 6 |
| 24 | 46.5 | 51.7 | 13.5 | 10 | 310 | 520 | 6 |
| 25 | 46.5 | 51.7 | 13.5 | 10 | 310 | 520 | 6 |
| 26 | 46.5 | 51.7 | 13.5 | 10 | 310 | 590 | 6 |
| 1166FA (inch) | W (mm) | W1 (mm) | T (mm) | T1 (mm) | L (mm) | g | pcs |
|---|---|---|---|---|---|---|---|
| ¼ | 17.4 | 17 | 7.4 | 4.9 | 136 | 38 | 12 |
| ⁵ᐟ₁₆ | 17.4 | 17 | 7.4 | 4.9 | 136 | 38 | 12 |
| ⅜ | 20.8 | 20.8 | 7.4 | 5.8 | 158 | 60 | 12 |
| ⁷ᐟ₁₆ | 23.4 | 25.1 | 8.7 | 6.2 | 175 | 70 | 12 |
| ½ | 24.9 | 27.2 | 8.7 | 6.4 | 185 | 95 | 12 |
| ⁹ᐟ₁₆ | 27.4 | 29.3 | 8.7 | 7 | 193 | 105 | 12 |
| ⅝ | 30.4 | 33 | 10.3 | 7.4 | 213 | 130 | 12 |
| ¹¹ᐟ₁₆ | 31.9 | 35.2 | 10.3 | 8.2 | 231 | 190 | 12 |
| ¾ | 34.5 | 39.4 | 10.6 | 9 | 249 | 190 | 12 |
| ¹³ᐟ₁₆ | 42.6 | 45.7 | 13 | 9.5 | 280 | 380 | 12 |
| ⅞ | 42.6 | 45.7 | 13 | 9.5 | 310 | 380 | 6 |
| ¹⁵ᐟ₁₆ | 46.5 | 51.7 | 13.5 | 10 | 310 | 520 | 6 |
| (1") | 46.5 | 51.7 | 13.5 | 10 | 310 | 520 | 6 |
Feature
72 teeth reversible gear ring for smooth and fast operation
– Slim-profile open-end + offset ring combo design
– 15° offset for improved access and comfort
– Cr-V chrome vanadium steel construction
-Mirror chrome finish
– Available in 1166FM (Metric) and 1166FA (SAE)
Complies with DIN-ISO / ANSI standards
- Made in Taiwan – high precision and durability
Professional Product Description:
1166FM / 1166FA Open-End Gear Ring Wrench combines speed, strength, and accessibility for professional use. Designed with a reversible 72 teeth ratcheting ring end and a slim open-end jaw, it’s ideal for tight workspaces where efficiency matters.
Model 1166FM provides Metric sizes (millimeters), while 1166FA offers SAE/Imperial sizes (inches) — clearly labeled for global applications. The 15° offset ring end improves reach and knuckle clearance, while the high-quality chrome vanadium steel ensures durability under heavy torque.
Each wrench is finished in satin or mirror polish and built in compliance with DIN-ISO and ANSI manufacturing standards. The result: a smooth ratcheting feel, reliable grip, and long-term performance trusted by technicians worldwide.
Whether you’re assembling machinery or servicing vehicles, this wrench offers the right combination of access, precision, and strength. Made in Taiwan, delivers tools built for professionals — every size, every standard, every job.
Technical Specifications:
Specification | Description |
Model | 1166FM / 1166FA |
Type | Open-End + Reversible Gear Ring Wrench |
Drive | 72-Teeth Ratcheting Ring End |
Sizes | Metric (e.g., 6~26mm)/ SAE (e.g., ¼~1”) |
Material | Chrome Vanadium Steel (Cr-V) |
Finish | Satin or Mirror Chrome |
Reversible | Yes – Quick Direction Change Lever |
Standards | DIN-ISO / ANSI Compliant |
