We have Makita 8433DWDE 14.4 Volt Cordless Hammer Driver/Drill Kit with Product Detail Maximum torque of 340 in./lb. 0-6,000 bpm (low), 0-19,500 bpm (high) 0-400 rpm (low), 0-1300 rpm (high) no load speed Three mode settings: hammer drilling, drilling, and driving One-year warranty . The "Makita 8433DWDE 14.4 Volt Cordless Hammer Driver/Drill Kit" is best product for you. We recommended Makita 8433DWDE 14.4 Volt Cordless Hammer Driver/Drill Kit