DEWALT Demolition Hammer D25892K 22 Lbs Inline Chipping Hammer (15 Amp 19.4 Joules SDS Max Chuck SHOCKS Vibration Control Structural Concrete Base) Grindign Discs always use a suction strainer always use a suction strainer if the area contains excessive large debris 375 in (3 8") Bit Material Carbide Tipped Impact Rated Yes Product Weight 0 SHOCKS Active Vibration Control: Minimizes erratic kinetic shock waves at the handle grips to insulate hands from operational stress and reduce long term fatigue this 120V concrete breaker minimizes operator fatigue while providing advanced directional stability for downward flooring and mid to lower horizontal wall chipping tasks