CP9778 Chicago Pneumatic High Speed Pistol Sander The CP9778 Chicago Pneumatic High Speed Pistol Sander is designed to be fast and precise and should be used for general maintenance. This sander is excellent for paint removal, smoothing and rust removal in limited space applications. The CP9778 Chicago Pneumatic High Speed Pistol Sander features a standard-duty high speed sander with a 5” (125mm) pad and a rugged, energy efficient 0.5hp (375w) motor. CP9778 Chicago Pneumatic High Speed Pistol Sander includes a built-in regulator and variable speed throttle.