| Model | FREE SPEED RPM | AVERAGE AIRCONSUMPTION( 25% ) SCFM | Chuck(Inch) | Sound dBA(pressure/Power) | Speed Reducer | Angle(Degree) | EXHAUST | LENGTH | WEIGHT | AIR PRESSURE | AIR INLET | |||
| m/m | in | kgs | lbs | psi | kg/c㎡ | |||||||||
| BW-638I | 2,500 | 5.8 | 3/8 | 87/99 | 3 gear planetary | 0 | Rear | 223 | 8.77 | 0.88 | 1.9`` | 90 | 6.3 | 1/4" |

