Brand New Makita model HM1500B 42lb Demolition Hammer Innovative pneumatic compression system automatically adjusts air in the cylinder to minimize power loss Unmatched power-to-weight ratio Special idling mechanism (patented) reduces hammering while idling Rubber-ringed brush holder cushions vibrations and lengthens life of brushes and armature Automatic brush cut-out system Side handle swivels 360° for operator comfort and control Anti-vibration main handle markedly reduced operator fatigue Powerful 13.5 AMP motor Factory grease packed for approximately 200 hours of lube free operation Accepts commonly used 1-1/8" hex shank bits and air tool bits 13.5 Amp motor Delivers 1300 blows per minute Produces 25.0J impact energy Accepts 1-1/8" Hex shank bits Steel tool case (182715-2)