What Is a Power Screwdriver and What Is It Used For?

What a power screwdriver is

A power screwdriver is a screwdriver with a small electric motor and, usually, a rechargeable battery built into the handle. You press a button or trigger, and the motor spins a bit that fits the screw head. The tool does the repetitive turning, and you guide it and keep the bit lined up.

Most models are slim and light. Many have a forward and reverse switch, a small LED to light the work area, and a magnetic bit holder so bits stay put. Some also have a manual mode, which lets you use the tool like a regular screwdriver when you need extra feel or extra force at the end of a tight screw.

What it is called

There is no single official name, and shoppers search for it in several ways. All of these terms usually point to the same kind of tool: a small, motorized screwdriver for light fastening work.

• Electric screwdriver: the most common everyday name.
• Cordless screwdriver: stresses that it runs on a battery, with no power cord.
• Powered screwdriver or power driver: general terms for any motor-driven model.
• Precision electric screwdriver: a small, pen-style version for phones, laptops and other electronics.
• Screw gun: a different tool, usually a corded or heavier driver made for drywall.

What a power screwdriver is used for

The best jobs are ones with many small or medium screws where a manual screwdriver gets tiring. Flat-pack furniture is the classic example, since you may drive dozens of screws in one afternoon. The same goes for cabinet hinges, shelf brackets, curtain rod hardware and switch or outlet cover plates.

Electronics repair is the other big use. Precision models turn tiny screws with low torque, so you are less likely to strip a head or crack a plastic case. A pen-style driver like the STREBITO 67-in-1 lists five torque levels up to 0.5 N·m in powered mode, which is about control rather than force.

Stronger household models can also drive screws into wood. The HOTO 25-piece kit lists up to 4 N·m in electric mode and up to 8 N·m in manual mode, and its listing describes reinforcing wooden shelves and bed frames. For those jobs, check the torque on the spec sheet before you buy.

Power screwdriver vs. drill and manual screwdriver

A manual screwdriver is cheap in effort terms for one or two screws, and it gives you the best feel. A power screwdriver wins when the screw count climbs, or when you work one-handed or in a tight spot.

A drill driver is the bigger, stronger tool. It can bore holes and drive long screws into dense wood, but it is heavier and can easily overdrive small screws. A power screwdriver is lighter and easier to control, but it is not meant for drilling holes or heavy construction work. If you mostly assemble, fix and repair, a power screwdriver is often enough. If you build decks or drill into masonry, you need a drill.

Specs that matter when you choose one

Our best power screwdriver page puts several models on one spec sheet. Four specs decide most of the choice.

Torque is the turning force. Models on that page range from 0.2 to 10 N·m, so decide whether you mostly handle electronics or furniture and wood. Adjustable torque settings help here. The DEWALT 4V, for example, lists 6-stage torque control, with up to 5 N·m powered and more in manual finishing.

Battery size and charging affect how long you can work. Battery energy on the page runs from 1.3 Wh to 16 Wh, and charge times from 0.22 to 2.5 hours. USB-C charging is convenient because you can use a common cable.

Bits matter too. Kits range from 5 to 162 bits. Electronics work often needs Torx, Pentalobe and Tri-Wing bits. Furniture work mostly needs Phillips, slotted and hex. A big bit count is only useful if it includes the types you actually need.

How to use one safely and well

Power screwdrivers are low-risk tools, but a few habits prevent damage and injuries.

• Match the bit to the screw head so it seats fully. A loose fit strips heads.
• Start at a low torque setting and raise it only if the screw stalls.
• Wear safety glasses when driving screws overhead or into hard material, since a bit can slip or chip.
• Hold the work steady with your free hand placed away from the bit path.
• Turn off power at the breaker before removing outlet or switch covers, and confirm the circuit is dead.
• Use the manual mode for the last turn on tight screws instead of forcing the motor.
• Charge with the cable and charger that suit the tool, and don't leave a battery charging unattended for long stretches.

Is a power screwdriver right for you?

If you assemble furniture, mount small fixtures or repair gadgets now and then, a power screwdriver can save time and wrist strain. If you regularly drill holes or drive long screws into framing, a drill driver is the better fit, and a power screwdriver can sit beside it as a lighter second tool.

When you are ready to compare models, start with the jobs you do most, then check torque, battery and bit types. Our power screwdriver comparison lists those specs side by side so you can narrow the field quickly.

Frequently asked questions

Can a power screwdriver replace a drill?

Not fully. It can drive many screws, but it is not designed for drilling holes or heavy fastening. Use a drill driver for those jobs.

Is a power screwdriver the same as an impact driver?

No. An impact driver adds short rotational hammering for tough, long screws and is much more powerful. A power screwdriver is smaller and gentler.

Do I need a manual mode?

It is helpful. Manual mode lets you finish a tight screw by hand and gives better feel on delicate parts, and it keeps you working if the battery runs low.

Will a power screwdriver strip screws?

It can if the bit is wrong or the torque is too high. Adjustable torque settings and the right bit size reduce that risk.