Spline/round hex bit system  tool-free bit changes, with automatic bit locking

Auto-Max® dial  variable speed dial designed to automatically insure the maximum speed and power every time the tool is plugged in

Constant Response&service; Circuitry Provies soft-start, maintains constant speed under load, provides overload protection

"Combination" dual mode selector 2 modes of operation, rotary hammer and hammer only mode

Turbo^TM Power  delivers 20% more power in hammer only mode

Service Minder ^TM light  indicates when preventative maintenance is required

Power light  ensures operator that power feed is on

Vibration dampening handle  reduces vibration up to 40%, providing uncompromising user comfort for extended periods of work

Vario-Lock^TM positioning rotates and locks chisel into 12 different positions to optimize working angle. Designed so a qualified service technician can quickly replace the brushes and cord - Provides added flexibility and reduces cord wear.

Grounded design, UL listed, complies to OSHA