| Bit Matrix | K1 | K3 | K5 | K7 | K9 | K11 | 
| Matrix Hardness | HRC54 | HRC42 | HRC30 | HRC18 | HRC6 | HRC0 | 
| 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(mm) | Code | 
| 1 | AWL | Reaming Shell | 48 | P | 
| 2 | BWL BWL2 | Reaming Shell | 59.9 | P, D | 
| 3 | NWL | Reaming Shell | 75.7 | P, D | 
| 4 | HWL | Reaming Shell | 96.1 | P, D | 
| 5 | PWL | Reaming Shell | 122.6 | P, D | 
| 6 | SWL | Reaming Shell | 148.1 | P, D |