DEWALT 20V MAX XR Brushless Impact Driver & Hammer Drill Combo Kit with 4.0Ah Battery, Cordless Power Tool Set (DCK299M2) - Perfect for Construction, Woodworking, and DIY Home Projects

I've been running these drills for about 9 months now. Shipping time was supposed to be 4-6 weeks. I ordered them tuesday night, wed they shipped, ETA monday. Got home friday, they were already there. I bought them on sale to replace a heavily used set of 18v drills. I work commercial construction, and my impact gets used far more than my hammer most days.Impact: I didn't really want the 3 speed, figured it was just one more thing to break. However, it is incredibly useful. Low allows you to safely drive small, fragile screws without stripping them, med is normal, and high is only really usable for long or large screws, it sinks them too fast to control. Great for shooting lags, or 4" deck screws. Brushless motor allows me to often go a couple days on a single 4ah battery.Drill: 3 speed transmission will out-torque most drills in low, and out-spin them in high. Electronic clutch stops the motor when using it, instead of just slipping and grinding like old style ones. Otherwise, it performs pretty similar to my old 18v did, but lighter, longer battery life, and has a light. The light on the drill was a nice surprise. It has a switch on the handle similar to the impact, that allows you to change the brightness of the light. The 2 lower settings work like a normal drill light, but the brightest one has the light stay on for 20 min after pulling the trigger, while being brighter than many flashlights, with a fairly wide beam. This allows it to serve as a makeshift worklight, and works great.Batteries/charger: Not much to say, lighter and more compact than the old 18v XRPs, charge faster and last a lot longer. They seem to handle the cold ok, I used them a few times in -20c or lower, though not often. Mine came with the 4.0AH batteries, though another review said they got 5's.Side note- Drills come with a belt clip, but neither one has a bit holder. You may want to order a couple at the same time, they attach to the opposite side to the clip