The Rockwood 3/8” Inline Drill is a heavy-duty industrial level tool with hardened planetary reduction gears ruggedly designed for many years of reliable service. Product Features: Slim and compact inline design Variable speed control High-Torque 5-vane ball bearing air motor 2,500 RPM free speed It features a unique, slim and compact inline design to allow access to areas where other drills can’t go. A high-torque, 5-vane, ball bearing air motor provides smooth operation and long life. Speed is easily controlled with an infinitely progressive throttled trigger control.