Operating Pressure: 90 psi (6.2 Bar) Pad Size: 90 x 170 mm Free Speed: 8000 RPM Overall Length: 148 mm Air Inlet: 1/4” PT Air Hose Inner Diameter: 3/8” Average Air Consumption: 5 CFM (142 L/min) This robust air orbital sander is designed for efficiency and performance, making it ideal for heavy-duty sanding tasks.