OMADA rotary hammer drill machine is powerful with 8.5 AMP Motor with Variable Speed for Improved Mixing and Drilling Performance. Variable speed (0 - 600 RPM) for mixing and drilling in a wide variety of materials. Forward and reverse lever for operator convenience. Well-balanced design at only 6.2 lbs. for reduced operator fatigue. D-handle rotates 360Degree with 24 detent stops for multi-position operation.