The Bosch GBM9-16 Mixer handles a wide variety of materials, from paint to plaster and more. It has variable speed control, and it has both forward and reverse operation at 0-700 no-load RPM. The all-ball bearing motor and precision-cut steel gears deliver plenty of power for high-torque mixing jobs. Higher speed is best for materials with low viscosity such as paint or sealing compounds. Lower speed, higher torque mixing works for mortar or epoxy resin. It features a 360° rotatable D handle, for maximum comfort. It diminishes vibration while allowing the user to adjust to the desired position. The heavy-duty 5/8" keyed chuck allows the tool to support a large variety of accessories. It features a tough, lightweight magnesium front housing for durability. It has a two-finger trigger design for easier mixing.