With the most powerful motor in its class, this SDS Max-Type rotary hammer powers through almost any material. Bauer anti-vibration technology delivers power to the bit and less vibration to the handle for fast, precise drilling with less user fatigue. A built-in safety clutch protects you in case the bit binds with drilling in concrete or masonry. The quick change SDS Max-type bit system on this rotary hammer holds chisel bits securely. Hard hitting 11 amp motor ensures powerful performance 3600 BPM with 7.4 ft. lbs. of impact energy for pounding through the toughest concrete and masonry Shock absorbent anti-vibration handle prevents strain and fatigue Variable speed dial and trigger to match application Accepts industry standard SDS Max-Type bits Adjustable 360° side handle for maximum comfort and control Easily switch from hammer drill to hammer-only function Built-in safety clutch for protection in case of bit bind-up