| Model | GP 831 LN |
| Patent | Over speed control Governor |
| Wheel size | 7'' (178 mm) |
| Spindle thread | 5/8'' - 11 (M 14) |
| Max. speed | 7000 rpm |
| Net weight | 3.05 kg |
| Length | 331 mm |
| Air cons | 0.50 m³/min |
| Air inlet | 3/8'' |
| Hose size | 11 mm |
| Sound Pressure | 96 dB(A) |
| Air pressure | 90 psi (6.3 kg/ cm²) |
| Vibration | 3.2 m/s² |
Singapore