I needed a new cordless drill as my MIL broke my 18v Ryobi, I ended up with this 20v Porter-Cable set (Drill + Impact Driver). Use the driver constantly to swap wheels. Built very well, batteries have great life, love the LED that illuminates your working surface, and plenty of torque for anything I've needed so far (about 1500 in/lbs is what I believe its rated for).
https://www.amazon.com/PORTER-CABLE-...rter+cable+20v