๐ Drilling efficiency drastically increased by redesigned hammering mechanism ๐ Anti-vibration side grip absorbs excess vibration beyond the canceling capacity of the two counterweights ๐ Anti-vibration rear handle; Vibration absorbing performance is increased by two cushion rings added to connecting parts ๐ Less bit wobbling achieved by making bit guide portion 8 mm longer than that of HR2811F series ๐ Powerful 1,050 W motor delivers 3.9 J (EPTA-Procedure 05/2009) of impact energy to handle the most demanding applications ๐ 3-mode operation for "Rotation Only", "Hammering with Rotation" or "Hammering Only" ๐ "No hammering when idling" function helps increase tool life ๐ Torque limiting clutch engineered to minimize gear damage by automatically disengaging gears if the bit binds ๐ Ergonomic "D-shaped" handle with rubberized soft grip for increased comfort ๐ Variable speed control dial allows operator to adjust speed based on materials or application ๐ Constant speed control automatically applies additional power to the motor to maintain speed under load ๐ Recessed lock-on button for continuous operation ๐ Depth gauge for increased drilling consistency ๐ Double insulated