High efficiency and unrivaled low level of vibration. (Anti-Vibration Technology). TOOL ONLY!USER BENEFITS:2 operation modes ? hammering with rotation and hammering only.New ?Two on / off switches switchable in hammering mode?.Easy-to-operate operation mode change lever.The level of vibration is further reduced by completely separating the machine holding section from the motor / transmission section.Soft No Load function automatically reduces the motor speed during idling to suppress the vibration of the machine body.Double Insulation, Variable Speed, Electronic Speed Control, Soft Start, Torque Limiter, SDS Max and Carry Case. Tool sold without bit.