Robust, efficient performance is what you can expect from the Earthquake Earth Auger Powerhead. The Viper 2-cycle 43 cc, 2 HP engine makes 1. 6 ft./lbs. of engine torque (45. 5 ft./lbs. output shaft torque), enabling you to dig post holes. It has anti-vibration foam grip handles to reduce fatigue. It works with Earthquake augers from 2 in. to 10 in. Dia for versatility.