Buying GuideHomeowner FocusApproximately 11-minute read

How to Choose a Cordless Drill

What Actually Matters (And What Doesn't)

Voltage, brushless, torque, clutch settings — here's what the specs actually mean for the work you're doing at home.

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Walk into any hardware store and the cordless drill aisle will hit you with a wall of numbers: 20V, 60V, 1,800 in-lbs of torque, 2-speed, brushless, 1/2" chuck, 530 UWO. Most of it is marketing.

The honest answer is that almost any 18V or 20V drill from a reputable brand will handle everything a homeowner needs. The differences between models matter — but not in the way the spec sheets suggest.

This guide cuts through the noise. It explains what the specs actually mean, which ones matter for the work you're doing, and how to pick the right drill without overspending or buying something underpowered.

A few things before we start:

  • —This guide is written for homeowners and DIYers, not contractors or tradespeople. The recommendations reflect that.
  • —No prices are listed because they change. Use the links to check current pricing.
  • —Specific drill recommendations are included as examples — not the only good options in each category.

01 — Voltage: The Number Everyone Argues About

Voltage is the most visible spec on the box and the most misunderstood. Higher voltage means more potential power — but only if the rest of the tool is designed to use it.

For homeowners, the practical range is 12V to 20V (or 18V — same thing, different marketing). A 12V drill is lighter and more compact, which makes it genuinely useful for tight spaces, overhead work, and tasks where you're holding the drill for extended periods. A 20V drill has more headroom for demanding tasks: drilling into masonry with a hammer drill mode, driving large lag screws, or working with a hole saw.

The 60V and 80V tools you see on the shelf are for heavy construction work. They're heavier, the batteries are expensive, and the extra power is wasted on the tasks a homeowner actually does. You don't need them.

For most homeowners: 20V is the right call. It covers everything from hanging shelves to building a deck, and the battery ecosystem is the largest and most affordable.

02 — Brushless vs. Brushed: Worth the Extra Cost?

Brushed motors use physical carbon brushes to transfer current to the motor. They work fine, they wear out over time, and they're less efficient — meaning more heat and shorter battery runtime per charge.

Brushless motors use electronics instead of brushes. They run cooler, last longer, and extract more work from the same battery charge. The efficiency difference is real: a brushless drill will typically run 25–50% longer on the same battery than a comparable brushed model.

For a homeowner who uses a drill occasionally, a brushed drill will likely last years before the brushes wear out. For someone who uses a drill regularly — weekend projects, ongoing renovations — brushless is worth the premium. The runtime improvement alone justifies it on longer jobs.

If you're buying a kit (drill + batteries + charger), the price difference between brushed and brushless is often $30–$60. That's worth it. If you're buying a bare tool to add to an existing battery platform, prioritize brushless.

03 — Torque and Clutch Settings: What the Numbers Mean

Torque is rotational force — how hard the drill can turn a fastener. It's measured in inch-pounds (in-lbs) or Newton-meters (Nm). The numbers on the box are maximum torque figures, which the drill reaches only under full load.

For homeowners, the torque spec matters less than the clutch. The clutch is the numbered ring behind the chuck — typically 1 through 20 or so, plus a drill mode. Lower numbers mean the clutch disengages at lower torque, which prevents you from overdriving screws, stripping heads, or snapping fasteners. Higher numbers and drill mode let the drill spin through without disengaging.

In practice: use low clutch settings for driving screws into wood (especially near edges), medium settings for general assembly, and drill mode for drilling holes. Most homeowners never need to think about the torque spec — they just need a drill with a functional clutch and enough settings to dial in the right amount of force for the task.

The clutch is more useful than the torque number. A drill with 15 clutch settings and 400 in-lbs of torque is more practical for household work than a drill with 3 settings and 800 in-lbs.

04 — Chuck Size: 3/8" vs. 1/2"

The chuck is the part that holds the drill bit. The size refers to the maximum shank diameter it can accept.

A 3/8" chuck handles the vast majority of drill bits and driver bits a homeowner will ever use. A 1/2" chuck can accept larger bits — spade bits, large hole saws, some specialty bits — and is standard on heavier-duty drills.

For most homeowners, 3/8" is sufficient. If you're regularly using large hole saws (for door locksets, plumbing, electrical boxes) or drilling into concrete with large masonry bits, a 1/2" chuck gives you more flexibility. The 1/2" drills also tend to be heavier, which is a real consideration if you're working overhead or in tight spaces.

05 — Two-Speed Gearboxes: More Useful Than They Sound

Most mid-range and higher drills have a two-speed gearbox — a physical switch on top of the drill that changes between a low-speed/high-torque mode and a high-speed/lower-torque mode.

Low gear (typically 0–450 RPM) is for driving screws and working with larger bits where you want control and torque. High gear (typically 0–1,800 RPM) is for drilling holes where speed matters more than torque.

This is a genuinely useful feature. A single-speed drill forces you to manage everything through trigger pressure alone. A two-speed gearbox gives you a mechanical advantage that makes the drill more versatile and easier to control across different tasks.

06 — Battery Platform: The Decision That Outlasts the Drill

When you buy a cordless drill, you're not just buying a drill. You're buying into a battery platform. The batteries from Milwaukee M18 don't work in DeWalt 20V tools. Ryobi ONE+ batteries don't work in Milwaukee tools.

This matters because once you have two or three tools on the same platform, switching brands means replacing all your batteries — which can cost more than the tools themselves.

If you already own cordless tools, buy a drill that uses the same battery platform. If you're starting from scratch, pick a platform based on the full ecosystem: what other tools are available, what the batteries cost, and how long the brand has been supporting the platform.

Ryobi ONE+ is the most affordable entry point and has the largest tool selection in the budget category. DeWalt 20V MAX and Milwaukee M18 are the professional standards with the deepest ecosystems. All three are legitimate choices — the right one depends on your budget and what other tools you plan to add.

Not sure which platform to commit to? Read the full comparison: Milwaukee vs. DeWalt vs. Ryobi — Which Cordless Tool Platform Is Right for You?

Read the comparison

07 — Kit vs. Bare Tool: Which Should You Buy?

A kit includes the drill, one or two batteries, and a charger. A bare tool is just the drill — no batteries, no charger.

If you're starting fresh with no batteries, buy a kit. The batteries and charger bundled in a kit are almost always cheaper than buying them separately. A typical 2-battery kit costs $30–$60 more than the bare tool, while the batteries alone would cost $60–$120 purchased separately.

If you already own batteries on the same platform, buy the bare tool. You don't need another charger and you don't need more batteries if you already have enough.

One exception: combo kits that include a drill and an impact driver together. These are often priced at or below the cost of buying the two tools separately, and they share batteries. If you don't own an impact driver yet, a drill/driver combo kit is usually the best value entry point.

Combo kits (drill + impact driver) are often the best value for someone starting a cordless tool collection. Two tools, shared batteries, one charger — usually priced below the cost of buying each separately.

08 — Hammer Drill Mode: Do You Need It?

A hammer drill adds a percussive action to the rotation — the bit hammers forward while it spins. This is useful for drilling into concrete, brick, and masonry, where a standard rotary drill struggles.

Most homeowners encounter masonry occasionally: anchoring something to a concrete wall, drilling through a brick exterior, mounting something to a foundation. For these tasks, hammer drill mode is genuinely useful.

The alternative is a dedicated rotary hammer (SDS drill), which is more powerful for heavy masonry work but overkill for occasional household use. For a homeowner who encounters masonry a few times a year, a drill/driver with hammer mode covers it without requiring a second tool.

09 — What You Can Safely Ignore

Some specs get a lot of marketing attention but matter very little for homeowner use.

10 — Recommendations by Use Case

Rather than a single "best" pick, here are recommendations based on how you'll actually use the drill.

Common Questions

What's the difference between a drill and an impact driver?

A drill/driver uses a rotating chuck and a clutch to drive fasteners and drill holes. An impact driver uses a hammering rotational action to drive fasteners — it's faster and more efficient for driving screws, but it can't drill holes and gives you less control over torque. For a homeowner starting out, a drill/driver is the more versatile first tool. An impact driver is a valuable addition once you're doing more fastening work.

Is 20V really more powerful than 18V?

No. 18V and 20V refer to the same battery chemistry — 18V is the nominal voltage, 20V is the maximum (peak) voltage. DeWalt and other brands use 20V MAX in their marketing; Milwaukee and Makita use 18V. The tools are functionally equivalent in terms of voltage. Actual power output depends on the motor design, not the number on the label.

Do I need a hammer drill for occasional concrete work?

For occasional masonry tasks — drilling a few anchor holes in concrete or brick — a drill/driver with hammer mode is sufficient. If you're doing significant masonry work (running conduit through concrete, drilling many holes in block or brick), a dedicated SDS rotary hammer is more effective. For most homeowners, hammer drill mode on a standard drill covers what comes up.

How many batteries do I need?

Two batteries is the practical minimum for any real work session — one in the drill, one on the charger. A single battery means stopping every time it runs down. Most kits include two batteries for this reason. If you're buying a bare tool to add to an existing platform, check how many batteries you already have before deciding whether to add more.

Can I use my drill as a screwdriver?

Yes, and most homeowners do. Set the clutch to a low number to prevent overdriving, use the correct driver bit, and keep the drill aligned with the fastener. The main advantage of a dedicated impact driver for screwdriving is speed and efficiency on longer screws — but a drill with a properly set clutch handles standard household screwdriving tasks without issue.

What drill bits do I actually need?

For household use: a set of standard twist bits (1/16" through 1/2"), a set of spade bits for larger holes in wood, a few masonry bits if you have concrete or brick, and a set of driver bits (Phillips, flat, square/Robertson, Torx). A combination set covering these categories costs less than $40 and handles the majority of what comes up in a house.

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