Features and Benefits: Researched and developed for ultra-fine finishing; Custom handle option (handle not furnished with sander) guarantees proficient control at any angle; Flex-cover gives comfortable grip, prevents stiff fingers; Low profile, vibration-free motor insures full contact sanding; Unique air efficiency system; Positive-action drive supported by 4-special bearings generates more power on less air. Over-size drive head eliminates pad-wobble for full contact sanding.