In the realm of construction and renovation, the choice of tools is paramount. Today, we delve into the dynamic landscape of cordless rotary hammers drills, examining four formidable contenders: the DEWALT 20V MAX SDS Rotary Hammer Drill DCH273B, the Makita XRH01Z 18V LXT Rotary Hammer, the BOSCH GBH18V-28CN 18V Rotary Hammer, and the MILWAUKEE M12 FUEL 2416-21XC 12-Volt Cordless Rotary Hammer Kit.