Which is better for driving screws?

The impact driver is better for screws and lag bolts because its impact action adds torque without twisting your wrist. The drill driver's clutch is better for small, delicate screws where you want to stop at a set depth.

Can the drill driver do everything the impact driver does?

It can drive screws, but it lacks impact action, so long or large fasteners take more effort. It can also drill holes, which the impact driver cannot do well without hex-shank bits.

Which one lasts longer?

Both use brushless motors and all-metal gearing on the Hercules 20V platform, so life depends mostly on battery care and workload. The drill driver has a 4.7 rating from 209 buyers; the impact driver listing shows no rating.

Many shoppers buy both because they share the same 20V batteries: the drill for holes and the impact driver for fasteners. If you only buy one, pick based on whether you drill more or drive more.

Is the drill driver worth the extra over the impact driver?

No prices were provided for either tool, so check the live prices on this page. The drill driver includes more accessories and a clutch, while the impact driver is more compact and better suited to fasteners.

What battery do these need?

Both are tool only and run on Hercules 20V lithium-ion batteries. One reviewer recommends at least a 4 Ah battery for extended drilling with the drill driver.

Hercules 20V Brushless 1/4 in. Hex Impact Driver (Tool Only) vs Hercules 20V Brushless 1/2 in. Drill Driver (Tool Only)

These are different tools, not rivals: the A impact driver is for driving screws and lag bolts, the B drill driver is for drilling holes and general fastening. Buy the impact driver if your work is mostly fasteners; buy the drill driver if you need one tool for drilling and driving. No prices were given for either, so compare live store prices on this page before deciding.

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