The 1838MUX hydraulic rock drill is designed with an efficient hydraulic double damping system that utilizes floating adapter technology to deliver high productivity and excellent drill steel economy. The hydraulic drifter is equipped with a powerful stepless variable and reversible rotation motor, ensuring high torque and superior speed control. Furthermore, productivity is enhanced and downtime is minimized through separate lubrication for the front head and driver, as well as pressurized, lubricated surfaces and side bolts.