■Non-sparking Tools
■Beryllium Copper & Aluminum Bronze
■Die Forged
■Q/ZBF-163
■Used to tighten or loosen large bolts and nuts.
The Convex head are suitable for use where space is deep concavity.
| Number | S mm  | L mm  | Be-Cu g  | Al-Br g  | 
| 163-22 | 22 | 165 | 330 | 300 | 
| 163-24 | 24 | 165 | 330 | 300 | 
| 163-27 | 27 | 175 | 370 | 335 | 
| 163-30 | 30 | 185 | 530 | 480 | 
| 163-32 | 32 | 185 | 475 | 430 | 
| 163-36 | 36 | 210 | 740 | 670 | 
| 163-41 | 41 | 227 | 950 | 860 | 
| 163-46 | 46 | 245 | 1270 | 1145 | 
| 163-50 | 50 | 257 | 1590 | 1435 | 
| 163-55 | 55 | 267 | 1800 | 1625 | 
| 163-60 | 60 | 278 | 2115 | 1910 | 
| 163-65 | 65 | 298 | 2580 | 2340 | 
| 163-70 | 70 | 320 | 2960 | 2680 | 
| 163-75 | 75 | 326 | 3350 | 3000 | 
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