How to Choose a Cordless Drill in 2026: Specs & Types

The short answer

The battery platform is the real decision. You are buying into an ecosystem — pick a major one you can grow with.
Drill/driver vs hammer drill vs impact driver are different tools; most homeowners want a drill/driver, and many add an impact driver.
Torque and chuck size tell you capability; brushless and amp-hours decide runtime and longevity.

A cordless drill is the cornerstone of a home toolkit, and the good news is that modern 18V/20V-class drills are powerful enough for almost everything a homeowner does. The subtle part is that you are not really buying a drill — you are buying into a battery platform you will add tools to for years. Get that right and the rest is straightforward. (For the wider picture across all cordless tools, see our how to choose power tools guide.)

On this page

Choose the battery platform first
Drill, hammer drill or impact driver?
Torque, chuck & speed
Brushless, voltage & amp-hours
Drill types compared
Kit vs bare tool & safety

Step 1: Pick the battery platform before the drill

With cordless tools, the batteries and charger are the expensive, locked-in part. Once you own a couple of batteries on a platform, every future tool on it is cheaper (buy the "bare tool" and reuse your packs); switching brands later means re-buying batteries. So choose a major, widely supported 18V/20V-class platform with a broad range of tools you might want over the next few years — drill, impact driver, saw, sander, outdoor tools. A slightly nicer drill on an obscure platform is usually the wrong long-term call.

Step 2: Which drill do you actually need?

Three similar-looking tools do different jobs:

Drill/driver: the all-rounder — drills holes and drives screws, with a clutch to avoid overdriving. This is the right first tool for most people.
Hammer drill: a drill/driver that adds a hammering action for masonry, brick and concrete. Get one if you will drill into walls of that kind; it still works as a normal drill.
Impact driver: a separate tool that uses rotational impacts to drive long screws and lag bolts with ease — far better than a drill for heavy fastening, but it takes hex bits, not round drill bits. Many people own a drill and an impact driver as a combo.

Quick decision. First tool for general use → drill/driver. Drilling masonry → hammer drill. Lots of screws/decking/framing → add an impact driver (often sold as a 2-tool combo with a drill).

Step 3: Torque, chuck and speed

These specs tell you what the drill can handle:

Torque (in-lb or Nm): the twisting force — it predicts real capability better than voltage. More torque drives bigger fasteners and bores larger holes. (1 Nm ≈ 8.85 in-lb.)
Chuck size: the jaws that hold the bit. A 1/2-inch (13 mm) chuck accepts larger bits and is the versatile choice; 3/8-inch is lighter and fine for lighter work.
Speed (two-speed gearbox): a low/high gear switch — low for high-torque driving, high for fast drilling. A clutch (numbered collar) prevents stripping screws.

Step 4: Brushless, voltage and amp-hours

Three more numbers, demystified:

Brushless motor: no brushes to wear out means more runtime per charge, less heat, more power in a smaller body and a longer life. Worth it for any tool you use regularly; brushed saves money on occasional-use tools.
Voltage (18V / 20V MAX): roughly indicates the power class. "20V MAX" and "18V" are marketing variations of the same nominal battery — do not be swayed by the bigger number alone.
Amp-hours (Ah): battery capacity, i.e. runtime. A 4.0 Ah pack lasts roughly twice as long as a 2.0 Ah pack on the same tool, but weighs more. A 2.0–4.0 Ah pack suits most homeowners.

Drill types compared

Tool	Drills	Drives screws	Masonry	Best for
Drill/driver	Yes	Yes (with clutch)	No	The first, do-most-things tool
Hammer drill	Yes	Yes	Yes (brick/concrete)	Homes needing wall anchors in masonry
Impact driver	Limited (hex bits)	Excellent (long screws/bolts)	No	Decking, framing, lots of fastening

Step 5: Kit vs bare tool, and safety

If you have no batteries yet, buy the kit (tool + batteries + charger) — buying a battery and charger separately often costs nearly as much as a whole kit. Once you own packs on a platform, buy bare tools and reuse them; that is where the platform pays off. On safety, match the bit to the job, use the clutch to avoid overdriving, wear eye protection, and look for tools and chargers tested to recognised standards such as those from UL Solutions, following general power-tool guidance from OSHA.

Compare specific drills in the best cordless drills roundup, add an impact driver, or build out a wider kit with our best tool sets guide.

Frequently asked questions

What should I look at first when buying a cordless drill?

The battery platform. With cordless tools, the batteries and charger are the expensive, locked-in part, so once you own packs on a platform, every future tool on it is cheaper to add. Choose a major, widely supported 18V/20V-class platform with a broad tool range you can grow into, then pick the drill itself within that ecosystem.

Do I need a hammer drill or an impact driver?

They do different jobs. A regular drill/driver suits most homeowners for drilling and screw-driving. Add a hammer drill if you will drill into masonry, brick or concrete. Add an impact driver if you drive lots of long screws or lag bolts — it makes heavy fastening far easier, though it takes hex bits, not round drill bits. Many people buy a drill-and-impact combo.

Does higher voltage mean a better drill?

Not on its own. Voltage roughly indicates the power class, and 20V MAX and 18V are marketing variations of the same nominal battery. Torque predicts real capability better, and amp-hours determine runtime. Compare torque and runtime across drills rather than being swayed by the biggest voltage number.

Should I buy the drill kit or just the bare tool?

If you have no batteries yet, buy the kit (tool plus batteries and charger), because buying a battery and charger separately often costs nearly as much as a complete kit. Once you own packs on a platform, switch to buying bare tools and reuse your batteries — that is where committing to one platform pays off.

How this guide is researched. This is a research-based buying guide. We do not stage hands-on tests or invent star ratings; instead we compare products by their published manufacturer specifications and cite established, independent sources so you can verify every claim. Read our full review methodology.

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