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■ Aluminium Bronze Alloy and Beryllium Copper Alloy
■ Die Forged
■ Tighten or loosen hex bolts and nuts directly
| Number | S mm | L mm | H mm | Be-Cu g | Al-Br g |
| 121B-7 | 7 | 120 | 120 | 100 | 90 |
| 121B-9 | 9 | 130 | 130 | 155 | 140 |
| 121B-11 | 11 | 140 | 150 | 190 | 170 |
| 121B-14 | 14 | 150 | 170 | 265 | 240 |
| 121B-17 | 17 | 170 | 190 | 410 | 370 |
| 121B-19 | 19 | 180 | 210 | 535 | 480 |
| 121B-22 | 22 | 190 | 240 | 750 | 680 |
| 121B-24 | 24 | 200 | 270 | 950 | 860 |
| 121B-27 | 27 | 200 | 270 | 1110 | 1000 |
| 121B-30 | 30 | 200 | 280 | 1340 | 1210 |
| 121B-32 | 32 | 200 | 280 | 1440 | 1300 |
| 121B-36 | 36 | 200 | 280 | 1980 | 1800 |
