Pads, Each - Astro Pneumatic Tool Company 5 in. high-speed sanders deliver vibration-free performance with a lightweight pistol grip design for greater control and comfort. Each sander features a built-in regulator and a direct drive motor with handle exhaust. Astro Pneumatic 5 in. high-speed sanders include a 3 in. and 4 1/4 in. phenolic backing pads and a hub wrench.