Double-edged screw extractor - 778/4A
| for unscrewing damaged screws and threaded bolts without damaging threads | |
| applicable for both right-and left-hand treads | |
| extractor is driven into the bore hole for firm and safe hold | |
| with centre punch pin | |
| non-slip and double-edged engagement with the screw or bolt to be removed | |
| material: chrome vanadium | |
| entirely hardened and tempered | |
| blackened | |
| cutting edges polished |
Profile:
 |  |  |  |  |  |  |  |  | Purchase request |
| 616823 | 1 | 6.35 (1/4") | M5 - M6 | 3.2 - 4.8 | 12 | 1E | 10 |  add | |
| 616824 | 2 | 9.5 (3.8) | M8 - M10 | 4.8 - 7.1 | 21 | 1E | 10 | add | |
| 616825 | 3 | 12.7 (1/2") | M10 - M12 | 6.4 - 9.5 | 35 | 1E | 10 | add | |
| 616826 | 4 | 15.9 (5/8") | M12 - M16 | 8.7 - 12.7 | 65 | 1E | 10 | add | |
| 616827 | 5 | 19.0 (3/6") | M16 - M20 | 11.1 - 15.9 | 107 | 1E | 10 | add | |
| 616828 | 6 | 22.0 (7/8") | M20 - M24 | 14.0 - 19.1 | 167 | 1E | 10 | add | |
| 616829 | 7 | 25.4 (1") | M24 - M33 | 19.1- 23.8 | 276 | 1E | 10 | add |
Legend of symbols
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Packaging data
Legend of symbols
Retail tool packaging
Transport package
| | A | B | C |  |  | A1 | B1 | C1 |  |
| 616823 | 1 | 100 | 80 | 6,35 | 13 | 1 | - | - | - | -
  |
| 616824 | 2 | 100 | 80 | 9,5 | 22 | 1 | - | - | - | -
 |
| 616825 | 3 | 100 | 80 | 12,7 | 36 | 1 | - | - | - | -
 |
| 616826 | 4 | 100 | 100 | 15,9 | 68 | 1 | - | - | - | -
 |
| 616827 | 5 | 105 | 100 | 19 | 110 | 1 | - | - | - | -
 |
| 616828 | 6 | 120 | 150 | 22 | 237 | 1 | - | - | - | -
 |
| 616829 | 7 | 120 | 150 | 25,4 | 280 | 1 | - | - | - | -
 |
Legend of symbols
Images of products are symbolic. All dimensions are in mm, weight in grams.
