Which is better for driving screws?

The combo kit. Its impact driver puts out 1,700 in-lbs and 3,200 rpm, far more fastening torque than the DCD800D2 drill's 90 Nm. The DCD800D2 is a drill only.

Is the DCD800D2 worth the extra $40.99?

If you drill often, yes. You get a brushless motor, 2,000 rpm versus 1,650 rpm, and a metal ratcheting chuck. If you also need to drive screws, the combo kit covers more for less.

Which has better batteries?

The DCD800D2 ships with two 2.0Ah DCB203 packs. The combo kit's listing is inconsistent, showing 1.3Ah in the description and 2.0Ah in the specs, so confirm the pack before buying.

Which lasts longer on a charge?

The DCD800D2, because brushless motors are more efficient and it includes 2.0Ah batteries. The combo kit's brushed tools draw more power for the same work.

Do both use the same batteries?

Yes. Both are DeWalt 20V MAX, so batteries and chargers interchange across the 200+ tool lineup.

Which is more compact?

They are close. The DCD800D2 is 6.37 in. long; the combo kit's drill is 6.38 in. and its impact driver is 5.15 in.

DEWALT 20V MAX Cordless Drill/Driver & Impact Driver Combo Kit vs DEWALT 20V MAX XR Cordless Drill/Driver Kit, Brushless, Compact, with 2 Batteries and Charger (DCD800D2)

Buy the combo kit if you want two tools and the lowest price: $129.00 at Amazon as of November 4, 2026 gets you a drill plus a 1,700 in-lb impact driver. Buy the DCD800D2 if you want one better drill: $169.99 at eBay as of November 4, 2026 buys a brushless motor, 2,000 rpm and a metal ratcheting chuck. The combo is $41 cheaper and covers fastening; the DCD800D2 is the stronger single drill.

Today the DEWALT 20V MAX Cordless Drill/Driver & Impact Driver Combo Kit costs $83.50 less at its best price.

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