Product Features Palm grip for comfortable and easily controlling Compact lightweight design Low weight housing with rubberized overmold Built-in air regulator allows to adjust sanding speed 6mm Orbital Diameter for super-fine finishes Rear exhausting - self-vacuum Technical Data Velcro Sanding Pad: 6" / 152mm Maximum Sanding Speed: 9000 rpm Recommended Operating Pressure: 6.3 bar Air consumption at recommended operating pressure: 127 L/min Air Inlet Size: 1/4" Minimum Hose Size: 3/8" / 10 mm Orbital Diameter: 5 mm Vacuum Type: Self-Generated Noise Level: 77 dB