We have DEWALT D25324K 1-Inch Heavy Duty 8 Amp SDS Rotary Hammer Kit with Quick-Change Chuck with Product Detail 8 amp motor provides high performance and overload protection: 0-1,150 RPM, 0-4,300 BPM Variable speed trigger allows user to match performance of tool to specific application Delivers 2.5 ft-lbs. of impact energy, providing fast drilling and powerful chipping SHOCKS - active vibration control, reduces vibration up to 60% while increasing user comfort and productivity Mode selector allows for usage in rotary only, rotary hammer, and hammer only applications . The "DEWALT D25324K 1-Inch Heavy Duty 8 Amp SDS Rotary Hammer Kit with Quick-Change Chuck" is best product for you. We recommended DEWALT D25324K 1-Inch Heavy Duty 8 Amp SDS Rotary Hammer Kit with Quick-Change Chuck