Which is better for drilling masonry?

B. The DCD1007 hammer drill makes 2,100 in-lbs of torque and is rated for up to 275 holes per charge. A's DCD799 is compact but single-speed with small 1.7Ah batteries.

Which kit lasts longer on a charge?

B. Its 4.0Ah batteries hold more than twice the charge of A's 1.7Ah POWERSTACK cells, so expect well over twice the runtime per pair.

Is B worth the extra $49?

Yes if you drill large holes or work in masonry all day. If you mostly drive screws and drill small holes, A saves money and weighs about 5 lb less.

Which is better for tight spaces and overhead work?

A. The DCD799 head is 6.49 in. long and the kit weighs 7 lb, so it fits between studs and is easier to hold overhead.

Do both kits use the same 20V MAX batteries?

Yes. Both run on DEWALT 20V MAX packs, so batteries and chargers interchange across the two kits.

Which has better storage?

B. It ships in a ToughSystem storage box; A comes with a soft contractor bag.

DEWALT (DCK226E2) 20V MAX Lithium-Ion Cordless 2-Tool Combo Kit with (2) POWERSTACK 1.7Ah Batteries and Charger vs DeWALT DCK2101QQ2 20V MAX XR 2-Tool Hammer Drill/Impact POWERPACK 4.0Ah Combo Kit

Buy the DCK2101QQ2 (B) if you drill large holes, work in masonry or need all-day runtime. Its DCD1007 hammer drill makes 2,100 in-lbs of torque and the two 4.0Ah batteries last far longer than 1.7Ah cells. Buy the DCK226E2 (A) if you want the lightest kit for overhead and tight-space work. B costs $299.00 at Home Depot as of November 4, 2026; A costs $249.99 at Amazon as of November 4, 2026, a $49 gap.

Today the DEWALT (DCK226E2) 20V MAX Lithium-Ion Cordless 2-Tool Combo Kit with (2) POWERSTACK 1.7Ah Batteries and Charger costs $49.01 less at its best price.

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