Bosch 11318EVS SDS-Max Demolition Hammer. SDS-max bit system - tool-free bit changes with automatic bit locking, dust protection and maximum impact energy transfer rate. Auto-Max dial - variable speed dial designed to automatically insure the maximum speed and power every time the tool is plugged in. Constant Response Circuitry - Provides soft-start, maintains constant speed under load, provides overload protection. Service Minder light - indicates when preventative maintenance is required. Power light - ensures operator that power feed is live. Vario-Lock positioning - rotates and locks chisel into 12 different positions to optimize working angle. Innovative service modules - designed so a qualified service technician can quickly replace the brushes and cord. Patented cord turret - provides added flexibility and reduces cord wear. Vibration dampening handle - reduces vibration up to 40%, providing uncompromising user comfort for extended periods of work. Grounded design, UL listed, complies to OSHA. Includes: Auxiliary Handle, Carrying Case. Specifications: Rating: 120V, Amperage: 11, No Load BPM: 1,300-3,300, Impact Energy (ft. lbs.): 8.8, Length: 17.75?, Weight (lbs.): 12.5.