| 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-638A | 1,800 | 4.5 | 3/8 | 83/95 | 3 gear, caged | 90 | Handle | 195 | 7.7 | 1.1 | 2.5 | 90 | 6.3 | 1/4" |

