Hitachi DH40MB 1 9/16" SDS MAX Rotary Hammer EVS BREAK through that wall with almost 6 ft/LB of Impact Energy and get a High Powered SDS MAX rotary hammer. This hammer drills and chips to match any application you need done. With the oversized nose retainer you can fit larger size bits in one motion for that larger size job. There is a one touch lever action for quick change over from hammer + rotary and hammer only. Ergonomic rubber cushioned handles with anti vibration features make this tool unique. Auto stop carbon brushes are standar Highest Power to weight ratio. 5.9 ft/LB of impact energy 2,800 BPM with Variable speed 30 day satisfaction guarantee and one year warranty on parts and labor