The Earthquake 14267 chipper shredder is the first-ever with the high-performance Viper Engine. Designed with patented dual triangular hammers, this chipper shredder offers maximum power at the point of impact. The heavy-duty knives and hammers are combined with a metal cone, providing extra durability that has become synonymous with Earthquake products. Turn yard waste into the perfect mulch with the powerful Earthquake 14267 chipper/shredder.