We have Panasonic EY7840LZ2S 14.4-Volt IP56 Li-ion Rotary Hammer Kit with Product Detail IP56 - Dust and Water Resistant Compact & Lightweight. Length 9 51/64" 5.28lbs Hammer mode: 0 -1,000 rpm and a maximum of 3,800bpm with a hitting force of 21.6 Kn. Drill mode: 0-1,000 rpm. SDS Bit System, 3.1Ah Li-ion Battery Packs GuardION Battery Protection System . The "Panasonic EY7840LZ2S 14.4-Volt IP56 Li-ion Rotary Hammer Kit" is best product for you. We recommended Panasonic EY7840LZ2S 14.4-Volt IP56 Li-ion Rotary Hammer Kit