| Model | FREE SPEED RPM | AVERAGE AIR CONSUMPTION( 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-638D | 2,200 | 7.1 | 3/8 | N/A | 2 gear, caged | 90 | Handle | 180 | 7.08 | 1.2 | 2.5 | 90 | 6.3 | 1/4" |

