Eastern Driller Manufacturing’s P5, P6, and P8 DTH hammers are tubeless and can drill under large volumes of water, making them the hammer of choice in geothermal drilling applications. The P-Series are the ultimate all-around hammers, some of the fastest production 6-inch tools available, and can effectively penetrate through the toughest rock. To learn more, call 1-800-233-0173. www.edmmfg.com