| Real inch | Model | Length (mm) | Weight (Kg) | External Diameter (mm) | Connection Thread | Bit Shank | Hole Range(mm) | Work Pressure (Mpa) | Recommended Rotation Speed (r/min) | Air Consumption | |
| 2.8 | ND25A | 872 | 16 | 71 | T48*10*1.5 | ND25A | 76-90 | 1-1.7 | 30-50 | 1Mpa 3m³/min | 1.5Mpa 4.5m³/min |
| 3.23 | ND35A | 886 | 24.2 | 82 | API2 3/8″REG | ND35A | 90-115 | 1-1.7 | 30-50 | 1Mpa 4m³/min | 1.5Mpa 6.5m³/min |
| 3.9 | ND45A | 986 | 40.5 | 99 | API2 3/8″REG | ND45A | 110-135 | 1-2.2 | 30-60 | 1Mpa 5m³/min | 1.8Mpa 9m³/min |
| 4.96 | ND55A | 1122 | 70 | 126 | API2 3/8″REG | ND55A | 136-155 | 1-2.5 | 30-60 | 1Mpa 7m³/min | 1.5Mpa 13m³/min |
| 4.6 | ND55S | 1119 | 62 | 117 | API2 3/8″REG | ND55S | 127-145 | 1-2.5 | 30-60 | 1Mpa 6m³/min | 1.5Mpa 12m³/min |
| 5.8 | ND65A | 1210 | 106 | 148 | API3 1/2″REG | ND65A | 158-203 | 1.2-2.5 | 30-60 | 1.8Mpa 16m³/min | 2.4Mpa 23m³/min |
| 6.5 | ND75A | 1225 | 143.5 | 165 | API3 1/2″REG | ND75A | 178-216 | 1.5-2.8 | 30-60 | 1.8Mpa 21m³/min | 2.4Mpa 28m³/min |
| 7.28 | ND85A | 1354 | 193 | 185 | API4 1/2″REG | ND85A | 198-254 | 1.5-3.3 | 30-60 | 1.8Mpa 25m³/min | 2.4Mpa 34m³/min |
| 8.9 | SP1081 | 1475 | 299.5 | 225 | API5 1/2″REG | NUMA100A | 254-311 | 1.5-3.3 | 30-60 | 1.8Mpa 36m³/min | 2.4Mpa 58m³/min |
| 12 | N125A | 1785 | 698.5 | 305 | API6 1/2″REG | NUMA125A | 330-400 | 1.5-3.3 | 25-45 | 1.8Mpa 46m³/min | 2.4Mpa 58m³/min |
| 13 | ND140A | 1861 | 851 | 332 | API6 5/8″REG API7 5/8″REG | ND330 | 350-550 | 1.5-3.3 | 30-55 | 1.8Mpa 53m³/min | 2.4Mpa 78m³/min |