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Bit Matrix | K1 | K3 | K5 | K7 | K9 | K11 | |||
Rock Hardness | Select K1 in case of low working lifte of K3 | Soft Rock Medium Hard Rock Hard Rock | Select K11 without footage of K9 | ||||||
Grain Size of Rock | Large Grain Medium Grain Fine Grain | ||||||||
Breakage of Rock | Serious Breakage Normal Breakage Complete | ||||||||
Drill Rig Power | High Power Medium Power Low Power | ||||||||
Seq. | Sizes | Item | OD*ID (mm) | Matrix Height | Matrix Available |
1 | AQ | Drill Bit | 47.6*27.0 | 9mm | K9 |
2 | BQ | Drill Bit | 59.5*36.3 | 9mm, 12mm | K7, K9 |
3 | BQ2/BQTK | Drill Bit | 59.5*40.7 | 9mm, 12mm | K7, K9 |
4 | NQ | Drill Bit | 75.3*47.6 | 9mm, 12mm | K3, K5, K7, K9 |
5 | NQ2 | Drill Bit | 75.3*50.8 | 9mm, 12mm | K7, K9 |
6 | HQ | Drill Bit | 95.6*63.5 | 9mm, 12mm | K3, K5, K7, K9 |
7 | PQ | Drill Bit | 122.0*85.0 | 9mm, 12mm | K3, K5, K7, K9 |
8 | SQ | Drill Bit | 147.6*102.0 | 9mm | K7 |




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