Stark USA 1200W industrial motor with 11J impact energy is designed to complete concrete and metalworking projects quickly and precisely. It is intended for professionals and home users. This high-strength alloy chuck is highly durable, and is corrosion resistance for long-term use Features: Perfect for Any Jobsite - It is perfect for wall breaching, slab removal, channel creation, surface preparation, and much more! Inline Design Chipping Function - Inline Chipping Hammer quickly breaks down dense concrete. Our hammer tackles horizontal & downward chipping for high-performance in mid-to-lower wall and flooring tasks & is ideal for wall breaching, channel creation as well as bushing & scarifying Superior Performance & Top Quality - 1200W industrial motor with 11J impact energy is designed for professionals and home users. Shock Absorbing Handle - Upgraded shock absorption structure with more springs saves effort. The bigger trigger switch provides a comfortable control experience. Spring design avoids hand injuries and ensures safety Easy to Operate - SDS Max bit system provides tool free bit changes with automatic bit locking, dust protection & maximum impact energy transfer. When used for long-term applications, The Lock-on Button allows us not to control the Start up Button all the time, added user comfort during extended periods of work Specifications: Function Type: Inline Chipping Hammer Voltage: 110V/60Hz Power Watt: 1200 Chuck Type: SDS-Max Chuck Size: Variable Speed: Yes (Trigger) Impact Rates: 3100BPM Impact Energy: 11J Chisel Type: Point & Bull Package Contents: Demolition Chipping Hammer Bull Point Chisel Flat Chisel Carrying Case