Balanced ball bearing construction.
Built-in regulator for positive speed control.
Positive locking clamps hold sand paper firmly in position.
Automatic release throttle lever with positive stop action.
Contoured palm-grip for one-hand operation.
Make fast work of smoothing fiberglass, wood, and body filler 
and take care of any sanding job on paint, metal, and fiberglass.
Rear exhaust.