Which kit is better for a contractor working on site every day?

The ToughSystem kit, for the brushless motors and the stackable hard case. The DCK620D2's brushed drill and impact driver will need brush replacement sooner under daily use.

Is the DCK620D2 worth $70.99 more than the ToughSystem kit?

Only if you want the Bluetooth speaker and the two-speed drill. Otherwise the ToughSystem kit gives brushless tools and a better case for less at its last price of $529.00.

Which has the better saw?

The DCK620D2 pairs a 6-1/2-inch circular saw with a DCS381 reciprocating saw, but one reviewer reports the recip stalling mid-cut. The ToughSystem kit uses the compact DCS369 recip saw, which is lighter at 3.13 lbs.

Do both kits use the same batteries?

Yes. Both run on the DeWalt 20V MAX lithium-ion platform, so batteries and chargers interchange between the two kits.

Which kit lasts longer?

The ToughSystem kit, on paper. Brushless motors have no brushes to wear out, and the ToughSystem case protects the tools better than a contractor bag.

Which is better for sanding and drilling?

The ToughSystem kit lists sanding and drilling as its intended applications. The DCK620D2 lists drilling and driving, and neither kit includes a sander.

DeWalt 20V MAX 6-Tool Combo Kit DCK620D2 vs DeWalt 20-Volt MAX ToughSystem Lithium-Ion 6-Tool Cordless Combo Kit

Buy the DCK620D2 if you want the classic DeWalt 20V MAX lineup with a Bluetooth jobsite speaker and a proven brushed drill and impact driver. Buy the ToughSystem kit if brushless motors and a stackable ToughSystem case matter more than the speaker. The DCK620D2 is $599.99 at DiscountCentralOnline as of November 3, 2026, while the ToughSystem kit last sold at $529.00, its only price on record since October 28, 2026.

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