We have Panasonic EY7880LN2S 28.8-Volt Li-ion Rotary Hammer Kit with Product Detail Compact & Lightweight. Length 12 9/16" 8.4lbs Hammer mode: Hard Mode: 23.6kN of hitting force with 0-4,600 bpm. Soft Mode: 12.7kN of hitting force with 0-3,100 bpm. Drill mode: High: 0-920rpm. Low speed 0-500rpm 3/4" Chuck SDS Plus Bit Ssytem GuardION Battery Protection System . The "Panasonic EY7880LN2S 28.8-Volt Li-ion Rotary Hammer Kit" is best product for you. We recommended Panasonic EY7880LN2S 28.8-Volt Li-ion Rotary Hammer Kit