The Comfort-Flex® composite operator handlesflex under load to help absorb vibration andschock. Increased safety in the event ofcontact with an underground utility line. Heat-treated spur gears are precision machine-cut, deliver unequated torque and horsepower. All-metal centrifugal clutch,oil-cooled to extend life, lips onoverload or sudden contact with buriedobstructions. Magura twst grip throttle control.