Which kit is better for a first power tool set?

The DCK521D2. Five tools cover the common jobs and it costs less. Add the 10-tool kit only if you know you need the blower, vacuum or reciprocating saw.

Is the 10-tool kit worth the extra money?

At $716.45 versus $669.00 on November 4, 2026, you pay about $47 for five more tools. That is good value if you will use them. Skip it if the extra tools would sit in the bag.

Which has better batteries?

Both ship with two 20V MAX 2.0Ah lithium-ion batteries and one charger. The batteries are the same class, so runtime is similar. Buy larger batteries separately for the grinder and saw.

Do both kits use the same battery platform?

Yes. Both run on DEWALT 20V MAX batteries and chargers, so tools and packs swap between kits.

Which is easier to carry around?

The DCK521D2 at 24.5 lbs. The DCK1021D2 weighs 41 lbs as a system and comes in two bags.

Which kit has more reliable reviews?

The DCK521D2 has a 5 out of 5 rating from 15 ratings. The DCK1021D2 has 4.7 out of 5 from only 3 ratings, with complaints about batteries failing and missing belt clips.

DeWALT DCK521D2 20V Max Compact Cordless 5-Tool Combo Kit vs DeWalt dck1021d2 20V MAX Cordless 10-Tool Combo Kit

Buy the DCK521D2 if you want five solid core tools and a lower entry price. Buy the DCK1021D2 if you need more tools in one box and will use the blower, vacuum and reciprocating saw. On November 4, 2026 the 5-tool kit is $669.00 at Home Depot and the 10-tool kit is $716.45 at Amazon, a gap of about $47. Both kits have swung widely in the past week, so check the price history before you buy.

Today the DeWALT DCK521D2 20V Max Compact Cordless 5-Tool Combo Kit costs $276.50 less at its best price.

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