Is the DCD791B the same drill as the DCD791D2?

Yes. Both are the DCD791 drill/driver with the same brushless motor, 1/2 in. metal ratcheting chuck, two speed ranges to 2,000 rpm, 15 clutch settings and 3-mode LED. The only difference is what comes in the box.

Which is better if I own no DeWalt batteries?

The DCD791D2 kit. It includes two 2.0Ah batteries and a charger, so it works the day it arrives. The bare tool needs a battery and charger before it will run.

Is the kit worth about $60 more?

Yes if you need batteries and a charger, since buying those separately usually costs more than the gap. No if you already have DeWalt 20V packs and a charger.

Which lasts longer on a charge?

They run the same time on the same battery. The kit ships with two 2.0Ah packs, so you can swap and keep working; the bare tool's runtime depends on the battery you supply.

Can I use my existing DeWalt 20V batteries in the bare tool?

Yes. The DCD791B takes any DeWalt 20V MAX battery, including 4.0Ah and 5.0Ah packs, which give longer runtime than the 2.0Ah packs in the kit.

Do both have the same chuck and clutch?

Yes. Both use a 1/2 in. keyless metal ratcheting chuck and 15 clutch settings, and both have the 3-mode LED with a 20-minute spotlight shutoff.

DeWalt 20V MAX XR Brushless Compact Drill/Driver Kit DCD791D2 vs DeWalt 20V MAX XR Brushless Drill/Driver

These are the same drill. The DCD791D2 is the kit with two 2.0Ah batteries, a charger and a case; the DCD791B is the bare tool. Buy the kit if you own no DeWalt 20V batteries, and the bare tool if you already have a charger and packs. As of November 6, 2026, the kit's best new price is $259.99 at eBay and the bare tool's is $200.21 at usatoolsinc.com, so you pay about $60 more for two batteries, a charger and a box.

Today the DeWalt 20V MAX XR Brushless Drill/Driver costs $107.67 less at its best price.

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