7" Vertical Sander. This rugged air polisher has a vertical 1 hp motor and an automatic release trigger with positive stop action. Double idler planetary gearing for long life. Through-handle exhaust with muffler to reduce noise. Uses 7" sandpaper. Free speed: 5000 rpm. Average air consumption: 6 cfm @ 90 psi. Weight: 4 1/2 lb. 1 year limited warranty.