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Plug hole rods have the simple structure of the integration of drill bits and drill rods and thus can be directly connected with rock drills without shank adapters nor coupling sleeves, which saves purchasing cost. The plug hole rod is mainly used in quarrying and mining.
Specifications Plug hole drill rod  | Dimensions L | Dimensions D | Part No. | |||
| mm | ft | in | mm | in | ||
Hex shank 22 * 108 mm (4 1/4”)  | 230 | ‒ | 9 1/8 | 22 | 7/8 | 01220231 |
| 250 | ‒ | 9 7/8 | 22 | 7/8 | 01220251 | |
| 300 | ‒ | 11 7/8 | 22 | 7/8 | 01220301 | |
| 350 | 1 | 1 3/4 | 22 | 7/8 | 01220351 | |
| 400 | 1 | 3 3/4 | 22 | 7/8 | 01220401 | |
| 500 | 1 | 7 3/4 | 22 | 7/8 | 01220501 | |
Hex shank 22 * 82.5 mm (4 1/4”)  | 230 | ‒ | 9 1/8 | 22 | 7/8 | 01220232 |
| 250 | ‒ | 9 7/8 | 22 | 7/8 | 01220252 | |
| 300 | ‒ | 11 7/8 | 22 | 7/8 | 01220302 | |
| 350 | 1 | 1 3/4 | 22 | 7/8 | 01220352 | |
| 400 | 1 | 3 3/4 | 22 | 7/8 | 01220402 | |
| 500 | 1 | 7 3/4 | 22 | 7/8 | 01220502 | |
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