"This Northern Industrial 5in. air sander can perform double duty. It spins up to 17,000 RPM for excellent high-speed sanding. Or remove the backing plate and install the rugged 3/8in. chuck to use as a high speed drill. Air Consumption (CFM): 4, Speed (RPM): 17,000, Pad Diameter (in.): 5.5, Air Inlet Size (in.): 1/4, Min. Hose Size (in.): 3/8 Lightweight aluminum housing Jacobs chuck for high-speed drilling 3 backing pads: 3in., 4 1/2in., 5 1/2in."
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