| Model | 258 | |
| Max Torque (reverse) | ft-lbs | 1000 |
| Max Torque (reverse) | Nm | 1360 |
| Working Torque Range | ft-lb | 200-800 |
| Working Torque Range | Nm | 272-1088 |
| Free Speed | rpm | 6.200 |
| Weight | lb | 10.77 |
| Weight | kg | 4.89 |
| Length | in | 9.8 |
| Length | mm | 249 |
| Air inlet | in | 3/8 |
| Min hose size | mm | 13 |