Features and Benefits: * 12,000 rpm free speed for swirl-free finishes * Durable, lightweight composite design weighs less than 2 lbs. * Lubrication free motor The IRT4152 sets a new standard in elite automotive finish work. The fine 3/32" orbit sander helps set the standard for high quality paint finishes. The IRT4152 utilizes a precision ground counterbalance to reduce vibration. The lubrication-free motor package eliminates worry of exhaust contaminants harming the work surface.