The CS11 is an extreme duty hydraulic powered chain saw for cutting all types of wood structures underwater - including bridge pilings, pier and dock timbers. It's robust design and high torque gear motor provides divers instant chain speed to cut through the toughest timbers with ease. The power to weight ratio is significantly higher than any other wood cutting chain saw and is available with bar lengths up to 36" (91 cm). Painted hi-visibility yellow.