Helical-cut steel, heat-treated steel gears for long life and durability. Metal gear housing for job site durability and increased reliability. Two-finger, rubber trigger for increased comfort. 360 degree side handle for greater control and versatility. 7.8 amps. 0-850 no load speed RPM. 600 watts out. Weight: 4.2 lbs. Includes: 360 degree side handle, chuck key with holder.