The Bosch RH328VC is a professional-grade 8.0-amp corded rotary hammer designed for high-performance drilling and chiseling in concrete and masonry. It delivers 2.4 to 2.6 ft-lbs of impact energy while maintaining a lightweight 7.7 lb design for an exceptional power-to-weight ratio. The tool features active Vibration Control in both the hammer mechanism and the grip area to maximize user comfort during extended use. Its versatile multifunction selector offers three modes of operation: rotary hammer, hammer-only, and rotation-only. Safety and precision are enhanced by an integral clutch that disengages torque if the bit binds, a variable-speed trigger for accurate bit starting, and a 360-degree auxiliary handle for superior control. The 1-1/8-inch SDS-plus chuck system allows for tool-free bit changes and includes a Vario-Lock system to rotate and lock chisels into 12 different positions