Hitachi H41MB SDS Max Demolition Hammer 7.4 lbs of impact energy for powerful chipping and faster demolition Variable lock mechanism for quick and easy chisel adjustment Compact and light weight for extended use with less fatigue Reduced motor vibration through increased rigidity in the motor housing More efficient cooling of the cylinder case for longer tool life Includes Bull Point (SDS Max Bit) (313471) and Case (326511)