| Model | 312AC4A | 314AC4A | 320AC4A | 325SC4A |
| Rated Power (hp) | 0.4 | 0.33 | 0.4 | 0.4 |
| Rated Power (kW) | 0.3 | 0.25 | 0.3 | 0.3 |
| Max Free Speed (rpm) | 12000 | 14000 | 20000 | 25000 |
| Output | Collet- 1/4 in. | Collet- 1/4 in. | Collet- 1/4 in. | Collet- 1/4 in. |
| Weight (lbs) | 1.2 | 1.2 | 1.2 | 0.9 |
| Weight (kg) | 0.55 | 0.55 | 0.55 | 0.43 |
| Length (in) | 6.7 | 6.7 | 6.7 | 6.5 |
| Length (mm) | 170 | 170 | 170 | 166 |
| Air Consumption @ Load (cfm) | 32 | 30 | 32 | 32 |
| Air Consumption @ Load (L/min) | 908 | 851 | 908 | 908 |
| Air Inlet Size (in) | 1/4 | 1/4 | 1/4 | 1/4 |
| Exhaust | Rear | Rear | Rear | Rear |
| Vibration m/s2 | 3.4, uncertainty: 1.0 | 3.2, uncertainty: 0.7 | 2.5, uncertainty: 1.1 | 2.6, uncertainty: 1.1 |
| Min Hose Size (in) | 3/8 | 3/8 | 3/8 | 3/8 |
| Min Hose Size (mm) | 10 | 10 | 10 | 10 |
| Model | 325XC4A | 330SC4A | 330XC4A | 335SC4A |
| Rated Power (hp) | 0.4 | 0.33 | 0.33 | 0.37 |
| Rated Power (kW) | 0.3 | 0.25 | 0.25 | 0.28 |
| Max Free Speed (rpm) | 25000 | 30000 | 30000 | 35000 |
| Output | Collet- 1/4 in. | Collet- 1/4 in. | Collet- 1/4 in. | Collet- 1/4 in. |
| Weight (lbs) | 1.4 | 0.9 | 1.4 | 0.9 |
| Weight (kg) | 0.62 | 0.43 | 0.62 | 0.43 |
| Length (in) | 9.6 | 6.5 | 9.6 | 6.5 |
| Length (mm) | 244 | 166 | 244 | 166 |
| Air Consumption @ Load (cfm) | 33 | 30 | 30 | 30 |
| Air Consumption @ Load (L/min) | 936 | 851 | 851 | 851 |
| Air Inlet Size (in) | 1/4 | 1/4 | 1/4 | 1/4 |
| Exhaust | Rear | Rear | Rear | Rear |
| Vibration m/s2 | < 2.5 | 3.6, uncertainty: 1.9 | < 2.5 | 3.0, uncertainty: 0.8 |
| Min Hose Size (in) | 3/8 | 3/8 | 3/8 | 3/8 |
| Min Hose Size (mm) | 10 | 10 | 10 | 10 |
