Eskimo's Shark Z71 provides high performance from top to bottom. At the top of the Eskimo Shark Z71 sits a Viper engine, designed specifically for ice augers. The Viper delivers high torque/high RPM for unmatched cutting speed. Eskimo's exclusive Quantum blades also deliver unmatched cutting speed with a controlled and smooth cut. Eskimo Ice Augers - Faster, Smoother!