| Model | 302B | 308B |
| Rated Power (hp) | 0.33 | 0.33 |
| Rated Power (kW) | 0.25 | 0.25 |
| Max Free Speed (rpm) | 20000 | 25000 |
| Output | 1/4 in. and 6 mm | 1/4 in. and 6 mm |
| Weight (lbs) | 1.28 | 1.02 |
| Weight (kg) | 0.58 | 0.46 |
| Length (in) | 6.93 | 6.85 |
| Length (mm) | 176 | 174 |
| Air Consumption @ Load (cfm) | 23 | 28 |
| Air Consumption @ Load (L/min) | 651 | 793 |
| Average Air Consumption (cfm) | 6 | 7 |
| Average Air Consumption (L/min) | 170 | 198 |
| Air Inlet Size (in) | 1/4 | 1/4 |
| Exhaust | Rear | Rear |
| Min Hose Size (in) | 3/8 | 3/8 |
| Min Hose Size (mm) | 10 | 10 |