Which is better for a beginner setting up a shop?

The combo kit. It gives you drilling, driving, two batteries and a charger in one purchase. The saw alone leaves you without a drill or a charger.

Can the combo kit's batteries run the circular saw?

Yes. Both are DeWalt 20V MAX tools, so the 2.0Ah packs fit the saw. Expect shorter runtime than the 6.0Ah pack the saw ships with.

Is the circular saw worth $199?

Only if you need to cut lumber. At $199.00 as of October 31, 2026 it costs more than the two-tool combo at $183.99 as of November 3, 2026, and it does one job.

Which lasts longer on a charge?

The saw's 6.0Ah battery holds three times the charge of each 2.0Ah pack in the combo. The drill and driver draw less power, so runtime per charge is closer than capacity suggests.

If you build or remodel, yes. The combo handles holes and fasteners, the saw handles cuts. Buy the combo first and add the saw when cutting becomes regular work.

DeWALT DCK277D2 20V MAX Cordless Brushless Drill / Impact Driver Combo Kit vs DeWalt 20V MAX Cordless Brushless 6-1/2 in. Circular Saw with 20V 6.0Ah Battery

These are different tools, not substitutes. Buy the DCK277D2 combo if you need to drill holes and drive fasteners; it is $183.99 at Zoro as of November 3, 2026. Buy the 6-1/2 in. circular saw if you need to cut lumber and already own 20V MAX batteries, at $199.00 as of October 31, 2026. If you are starting from nothing, the combo kit is the better first purchase because it includes batteries and a charger.

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