What Size Electric Screwdriver Set Do I Need?
For electronics, phones and PC builds, choose a pen-sized precision set with torque under 1 N·m and 50 to 140 small bits. For furniture, shelves and fixtures, choose a household driver with several N·m of torque and a handful of sturdy bits. Pick by the screws you drive most, because "size" mostly comes down to torque, bit count and the driver's body.
JAKEMY YF-FO-167
STREBITO 
STREBITO Best compact precision kitWhat "size" really means for an electric screwdriver set
When people ask what size set they need, they usually mean one of three things: how strong the driver is, how many bits come in the box, or how big the tool is in your hand. All three matter, and they tend to move together.
Electric screwdriver sets split into two kinds. Precision kits pair a pen-sized driver with dozens of tiny bits. Household kits pair a stronger driver with fewer, larger bits. Once you know which kind fits your work, the rest of the choice gets much easier.
If you want to see how specific models line up, our best electric screwdriver set page puts them on one spec sheet.
Match the set to your job
Start with the screws you handle most often. Small screws in thin metal or plastic need gentle, controlled torque. Large screws in wood or furniture need real turning force.
In our lineup, torque runs from 0.15 to 10 N·m. Precision drivers stay under 1 N·m, while household drivers reach several N·m. Here is how the two kinds compare.
| Job | Set type | Torque to look for | Bits you need |
|---|---|---|---|
| Phones, tablets, laptops | Precision | Under 1 N·m, with several adjustable levels | 50 or more small bits |
| PC building, keyboards, game controllers | Precision | Under 1 N·m | Phillips, Torx and hex are the basics |
| Drones, RC cars, watches | Precision | Low, finely adjustable | A mix of small Phillips, hex and slotted |
| Flat-pack furniture, shelves, cabinet hardware | Household | A few N·m | A few sturdy Phillips, slotted and hex bits |
| Fixtures, hinges, larger repairs | Household | Several N·m up to 10 N·m | A short list of larger bits |
How many bits should the set include
Bit counts in our lineup range from 5 to 162. More is not always better. The right number depends on how odd your screw heads are.
Electronics are where big bit counts earn their place. Devices use screw heads like Pentalobe, Tri-Wing, Torx security and tiny hex. A kit with 100 or more bits covers most of them. For example, the Jorest 155-in-1 kit includes 140 bits, and the STREBITO 144-piece kit includes 120 bits.
A smaller precision kit can still be enough. The STREBITO ST017 includes 64 bits, and the STREBITO 67-in-1 includes 50 S2 bits that cover Phillips, Torx, Tri-Wing, Pentalobe and more. If you only open a laptop now and then, a compact kit like these avoids paying for bits you will never touch.
Household kits are the opposite. They need fewer bits, but those bits must be sturdy enough to handle higher torque.
- Occasional laptop or PC work: 50 to 70 precision bits is usually plenty.
- Repairing many kinds of devices: look for 100 or more bits and a labeled case.
- Furniture and home tasks: a handful of durable bits matters more than a long list.
Torque: how much is enough
Torque is the twisting force the driver applies. Too little and a stubborn screw will not budge. Too much and you can strip a screw head or crack a small plastic housing.
Precision kits in our data offer five adjustable levels. The Jorest set spans 0.15 to 0.75 N·m, and the STREBITO 144-piece set spans 0.15 to 0.7 N·m. The STREBITO ST017 spans 0.15 to 0.5 N·m. Those ranges suit small screws well.
Most of these drivers also have a manual mode. The Jorest, STREBITO ST017 and STREBITO 67-in-1 listings each mention up to 7 N·m of manual torque. That helps when a screw is stuck, since you can break it loose by hand and then switch back to the motor.
For heavier work, our page points to a household pick with up to 4 N·m of electric torque and a 1500mAh battery, plus a model with up to 10 N·m. Those are better matched to furniture and fixtures than to a phone.
Body size, weight and battery
A smaller tool fits tight spaces, but it holds a smaller battery. Precision drivers sip power, so a compact battery is fine. The Jorest set uses a 500mAh battery with a stated 1.5 hours of runtime, and the STREBITO ST017 and 67-in-1 use 350mAh batteries.
Weight matters if you work for long stretches. Our page names one set as the lightest in the lineup at 0.57 lb. The STREBITO 67-in-1 weighs 0.99 lb and the STREBITO ST017 weighs 1.21 lb. The Jorest kit is listed at 2.07 lb, which likely reflects the full kit.
Charging is easy to overlook. USB-C charging is common, and charge times in our lineup run from 0.22 hr to 2.5 hr. Several of the precision kits above list about 1 hour. Household drivers that work harder benefit from bigger batteries.
Features that make a smaller set easier to use
Some extras are worth a look, especially for electronics. A magnetic case keeps tiny bits organized, and built-in LED lights help in dim corners. Several kits in our data include both. A manual option also protects delicate threads during final tightening.
- Adjustable torque levels, so you can start low on small screws.
- Manual mode for stuck screws and the last gentle turn.
- LED light for dark interiors.
- A labeled, magnetic case so you can find the right bit quickly.
- USB-C charging, so you do not need a special charger.
- A warranty, which several kits in our lineup list as a lifetime warranty.
Safety notes
Unplug any device before you open it, and disconnect it from its charger. Lithium batteries inside phones and laptops can be damaged by pry tools or stray screws, so go slowly and keep metal tools away from them.
Wear safety glasses when you pry, cut or drive screws that might slip, because small bits and parts can fly off. Hold the work steady rather than against your hand, since a slipping bit can hurt.
Always charge your driver with a proper cable and never leave it charging unattended. If a screw is glued or stuck, loosen it by hand first, and use a step stool or ladder carefully if the job is overhead.
A simple way to decide
Choose the kind of set first, then fine-tune. If most of your screws are tiny, start with a precision kit and pick the bit count that fits how many device types you open. Our best electric screwdriver for pc building page narrows that further for desktop builds.
If most of your screws hold furniture or fixtures together, skip the tiny-bit kits and look at household drivers with more torque and a larger battery. If you do both, a precision kit for electronics plus a stronger driver for the house is often better than one tool that does neither well.
Frequently asked questions
Can one electric screwdriver do both electronics and furniture?
It is hard to do both well. Precision drivers stay under 1 N·m, which is too weak for furniture, while strong household drivers are too bulky and forceful for small electronics.
Is a 140-bit kit better than a 50-bit kit?
Not automatically. A larger kit covers more unusual screw heads, but a 50-bit set already includes Phillips, Torx, Pentalobe and Tri-Wing, which handles many common repairs.
Do I need a separate manual screwdriver?
Not always. Many electric sets include a manual mode for extra force, and some kits add a separate precision screwdriver for more control.
What should I check before using the driver on a glued screw?
Loosen it by hand first, then switch to electric mode. That protects the screw head and the threads.