1-3/4″ SDS Max Rotary Hammer. Best-in-class power and the highest overload protection handle the toughest concrete drilling and demolition. The 1-3/4? SDS-Max Rotary Hammer offers 8.8 ft-lbs of impact energy along with 450 RPM and 2,840 BPM for fast drilling and hard-hitting performance in the toughest applications. Advanced Constant Power Technology electronics and a mechanical clutch enhance your control and the rotary hammer?s long-term durability. The Anti-Vibration System ensures safe, comfortable use. The tool comes with a side handle and carrying case.