DEWALT DCH832X1-60V 16Lbs SDS Max Chipping HammerPowered by a high performance motor, this durable 60V MAX 15 lb. Cordless SDS Max Chipping Hammer is designed to help you tackle a variety of challenging demo work. The hammer is engineered for fast chipping on hard concrete and delivers up to 10. 5 J of impact energy. From remodeling projects to general contractor jobs, the versatile hammer can handle a wide variety of applications while maintaining a consistent speed under load with constant speed