Which is better for driving long screws and lag bolts?

The combo kit (B). Its impact driver is rated 1,700 in-lb and 3,200 rpm, which outdrives the DCD800 drill on fastening. The drill in B is the weaker half of that kit.

Which drill is stronger?

The DCD800 in kit A. It has 90 N·m of torque and 2,000 rpm versus 1,500 rpm for the drill in kit B.

Is the combo kit worth the extra $4.38?

Yes if you will use an impact driver. At $129.00 at Amazon versus $124.62 at eBay as of November 6, 2026, B adds a whole second tool for under $5 more.

Which has better batteries?

Kit A. It ships two 2Ah batteries; kit B ships two 1.3Ah batteries, so A runs longer per charge.

Which is better for a homeowner with occasional jobs?

Kit B covers more jobs for about the same price. Kit A suits someone who mainly drills and wants the compact, higher-torque tool.

Do both use the same 20V MAX batteries?

Yes. Both are DeWalt 20V MAX tools, so batteries and chargers interchange across the platform.

DeWalt 20V MAX* XR Brushless Cordless 1/2 in. Drill/Driver Kit vs DeWalt 20V MAX Cordless Drill and Impact Driver

Buy the DCD800 drill/driver kit (A) if you want one strong, compact drill with two 2Ah batteries and a brushless 90 N·m motor. Buy the combo kit (B) if you need an impact driver for driving screws and lag bolts, since it adds a second tool for about the same money. As of November 6, 2026, A's best new price is $124.62 at eBay and B's is $129.00 at Amazon, a $4.38 gap.

Today the DeWalt 20V MAX Cordless Drill and Impact Driver costs $71.00 less at its best price.

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