Which is better for drilling masonry?

Both hit 34,000 BPM in hammer mode, so they are close. The DCD795D2 states a 13 mm masonry capacity, while the DCD805B lists a 5/32 to 1/2 in optimum range.

Is the DCD805B worth it if I own no DeWalt batteries?

Not on price alone. Add a 20V battery and charger and the total can pass the $99.99 kit price of the DCD795D2.

Which is lighter and more compact?

The DCD805B. It is 2.3 lbs bare and 6-15/16 in long, against about 2.9 lbs and 7.75 in for the DCD795D2.

Is the DCD795D2 kit worth the extra $47?

Yes if you need a battery and charger, since those are included. No if you already own DeWalt 20V packs.

Do both use the same 20V batteries?

Yes. Both run on the DeWalt 20V MAX platform, so one set of packs works with either tool.

Which has the better chuck?

The DCD805B lists a keyless 1/2 in chuck, which is faster for bit changes. The DCD795D2 is listed with a keyed chuck.

Dewalt DCD805B 20V Compact Cordless 1/2" Brushless Hammer Drill (Tool Only) vs DEWALT DCD795D2 20V XR Lithium-Ion Brushless Compact Hammer Drill Kit

Buy the DCD805B if you already own DeWalt 20V batteries and want the lowest-cost way into a compact brushless hammer drill. Buy the DCD795D2 kit if you need batteries and a charger in the box and want a known-genuine DeWalt tool. The DCD805B is $52.99 at eBay as of November 4, 2026, and the DCD795D2 kit is $99.99 at eBay as of the same date, so the kit costs about $47 more.

Today the Dewalt DCD805B 20V Compact Cordless 1/2" Brushless Hammer Drill (Tool Only) costs $47.00 less at its best price.

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