Aug. 26, 2024
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Whatever you&#;re planning to do in your garden, keep safe and wear safety glasses when you&#;re using an electric screwdriver.
An electric screwdriver is the perfect companion to a drill, saving you constantly changing drill bits and allowing you to simple go from a drill to screwdriver when you want to drill holes as well as drive in screws. For help choosing a cordless drill take a look at our review of the best cordless drills, and our guide to the best drill bits. For manual screwdrivers, we can recommend our article on the best screwdriver sets. For more hand DIY tools, take a look at our guide to the best multi-tools.
If you're looking for garden DIY inspiration, consider our 10 garden DIY projects for the weekend, or our guide on how to build a bat box. For other tool reviews, check out our reviews of the best hammers, best pressure washers, and the best grass strimmers.
We tested tested a range of electric screwdrivers with each used to drive a variety of screws into different materials to see how they fared. Each has a detailed list of pros and cons for clarity and has been rated according to assembly and storage, ease of use, performance, and value for money. Every electric screwdriver in our round up has scored a minimum of 3.5 out of five stars, so you can buy with confidence.
In every review we award the outstanding products our coveted Best Buy award. To see these and the others we recommend, browse our pick of the best electric screwdrivers below:
RRP: £65
Our rating: 4.5/5
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Awarded a BBC Gardeners&#; World Magazine Best Buy for a small electric screwdriver, the IXO is on its 7th generation, and boasts a huge amount of power with a high capacity battery, all in a modest and lightweight package. The shape of the handle is ergonomically designed and features plenty of grippy textured sections. The large trigger is easy to control, and you can&#;t easily knock the direction selector during use, which was an issue on previous IXO drivers. It packs a huge amount of power in, with 5.5 Nm of turning force, or torque, and with a whopping micro USB charged 2.0 Ah battery it will drive up to 190 screws on a single charge at 235 rpm &#; plus a helpful charge level indicator lets you know how much life you have left .The 360° ring light on the front does a good job of illuminating the work area, and this version even comes with a pair of accessories- a right angle and off-set adapter for working in tight areas. It comes in a small plastic case that contains a modest but quality selection of screwdriver bits.
RRP: £44.99
Our rating: 4.5/5
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The WORX WX255 is an impressive and versatile electric screwdriver. It&#;s lightweight at just 500 g, boasts a comfy rubberised grip, and the internal battery is charged by micro USB. It has earned itself the BBC Gardeners' World Magazine Best Buy award for best one handed electric screwdriver, because of the way you can easily change bits. The top of the tool slides back to reveal a six round magazine filled with different screwdriver bits and this can be completely removed, allowing you to fit your own selection of standard screwdriver bits, which is rather handy. The best feature on this electric screwdriver though, is the screw holder. It&#;s an ingenious accessory that grips the screw for you and is ideal for anyone with mobility issues or for driving screws one handed above your head. It's only rated to 3 Nm of torque, but that&#;s enough for putting together flat pack furniture or building your own hedgehog house. The only thing it lacks is an adjustable handle for working in tight spaces.
RRP: £66.99
Our rating: 4.5/5
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Bosch have created a clever electric screwdriver that you&#;ll know how to use, purely on instinct. It has a surprising amount of power and is simple to handle thanks to their &#;Push&Go&#; technology - there&#;s no trigger to pull on this screwdriver, the motor engages when it senses pressure on the tip of the screwdriver, and this earnt it a BBC Gardeners&#; World Magazine Best Buy award for a precision electric screwdriver. There&#;s plenty of grippy rubber that runs the length of the tool, and even a cover that keeps dust and dirt from getting into the micro USB charging port. You can select from six different torque settings from 2.5 &#; 5 Nm for working on hard or soft materials, and the single speed motor runs at a reasonable 360 rpm. When the direction selector is in the locked position, it performs just like a conventional screwdriver, which is useful for delicate jobs, or when you&#;ve forgotten to charge the battery. It comes in a plastic case that holds 32 decent quality bits, including Torx and hex bits. The only downside is that you need to hold on tight when it&#;s set to a high torque setting. It can twist your wrist if you&#;re not paying attention.
RRP: £30
Our rating: 4.5/5
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The Rapid Driver Screwdriver is a deceptively powerful tool that packs a punch inside its miniature frame. Putting out a class leading 5.5 Nm of torque, this little screwdriver doesn&#;t hesitate to drive home long screws. The direction selector sits on the top of the tool and is operated with the thumb, so you can&#;t accidentally change direction halfway through the job. The hard case is a welcome feature that keeps the driver safe between tasks, holds the ten included bits securely, and even gives you extra space for odds and ends. Something we really like though is the recess in the case that allows you to charge the driver up via micro USB even when the lid is shut. It&#;s a thoughtful inclusion that makes a lot of sense. We&#;ve awarded it the BBC Gardeners' World Magazine Best Buy award for a powerful electric screwdriver.
RRP: £44.99
Our rating: 4.3/5
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We&#;ve awarded this clever little tool the BBC Gardeners' World Magazine Best Buy award for excellent accessories because it comes with four different detachable heads for different jobs. You get a right-angle head, an eccentric head for screwing adjacent to walls or corners, a torque head that means you can screw into delicate materials, and a unique cutting device that&#;s perfect for card and other thin sheet materials. It can make 4 Nm of torque, and it all comes neatly packed in a hard case that holds 27 different screwdriver bits. It&#;s charged via USB, and there&#;s a charge level indicator on the top. The handle is well shaped and there&#;s plenty of rubber on there for grip, and although the handle doesn&#;t adjust, one of the four attachments will get you into (and out of) most tight spots.
Although some models didn't quite achieve a BBC Gardeners&#; World Magazine Best Buy award, they still have great features that make them worth recommending. Browse our pick of the best of the rest on test.
RRP: £70.41
Our rating: 4.3/5
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Cons:
Makita make a huge range of professional level tools, but this little screwdriver is more suitable for light work. It&#;s a 3.6 Volt screwdriver that produces an impressive 6 Nm of torque. The adjustable handle makes it nearly 30 cm long in in-line mode, which is good for getting into awkward spots, but in &#;gun mode&#; the handle and trigger are a bit cumbersome. There&#;s no torque selector, but you still have good control thanks to the large handle. You charge the internal 1.5 Ah battery via micro-USB, it comes in a quality plastic case with a thoughtful selection of quality bits, but the single LED work light is a bit dim.
RRP: £33.99
Our rating: 4.3/5
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The ERGO electric screwdriver is a hugely comfortable tool to use, whether you&#;re changing the blade on your lawn mower or even building a compost bin. The trigger extends almost all the way to the bottom of the handle so it&#;s easy to use if you&#;re wearing gloves. The powerful 4 Volt Lithium ion battery is charged via micro USB and provides 5 Nm of torque. It spins bits round at a manageable 200 rpm, and because it&#;s 1.5 Ah it lasts for a long time too. It also includes a single bright LED work, which you can use while the screwdriver is in the locked position. It all comes in a translucent plastic box with a zip around it, along with a modest collection of 10 different bits. The ERGO is compatible with a couple of different accessories like a right angle driver, but unfortunately, they&#;re not included.
RRP: £20
Our rating: 3.5/5
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The MSD36-Li is a low cost 3.6 Volt powered electric screwdriver that comes with a surprising number of features. The battery has a 1.3 Ah capacity, and it can make up to 5 Nm of torque. By pressing a button on the top of the tool, you can turn the handle from a gun shape to an inline electric screwdriver that can fit into narrow spaces. The handle is comfortable and big enough for someone with large hands, there&#;s a charge level indicator, and you can employ a seriously bright four-LED work light on one end. You don&#;t get a case though, and only a few screwdriver bits to play with.
RRP: £17.98
Our rating: 3.5/5
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The Titan brand of tools is familiar to anyone who uses Screwfix for their home and garden projects, and their adjustable handle electric screwdriver is budget friendly piece of kit. Boasting a maximum 5 Nm of torque and making 200 rpm, the onboard 1.3 Ah battery charges in an hour. It&#;s comfortable enough to hold on to and the bits are held in mechanically rather than with a magnet. You can adjust the handle from inline to gun shape with the press of a button, and the torque selector ring means you can control how much power the screwdriver will apply to a screw before it cuts out. You get a single LED work light on the front and even a dazzling four-LED work light on the other end. It&#;s a basic model that doesn&#;t come in a case, but for the price it&#;s a very useful tool to have around.
RRP: £32.32
Our rating: 3.5/5
Link to ehimax
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Supplied with a dazzling array of 55 different screwdriver bits, this handy budget electric screwdriver from Draper is like a whole toolbox in a single package. Sporting a reasonably comfy grip shape and adjustable handle, you can convert it from a gun shape to an inline screwdriver by pressing a button for getting into tight corners. There&#;s a clear plastic case to keep everything together and a single LED to light the way. It&#;s just a shame that instead of the widely used micro USB charging cable, it comes with a sluggish non-standard charger that you really don&#;t want to lose.
Instead of carrying around a toolbox full of different screwdrivers, one of the best things about an electric screwdriver is the exchangeable bits. Held in place with a magnet or locking sleeve, you can choose from an enormous range of screwdriver bits to fit every type of screw or bolt. And changing screwdriver bits is as simple as pulling it out from the bit holder and putting in another one.
Follow these simple steps to get the most from an electric screwdriver:
They might look similar, but an electric screwdriver and a drill are not the same thing. The main difference is power. A drill needs a lot of power to make holes in materials like wood or metal, so they come with a powerful motor and a heavy battery, which is why they&#;re a lot bigger and weigh more than an electric screwdriver.
Drills can spin much faster as well. A typical combi drill can reach speeds of up to 2,000 rpm, while an electric screwdriver might only need to produce 200 rpm. Because they don&#;t need to produce lots of torque or speed, electric screwdrivers can be much smaller, lighter weight, and much easier to use.
An electric screwdriver is a good replacement for a manual one, especially if you have mobility issues, saving you time and effort. It performs the physical action of driving a screw in or out, leaving you free to concentrate on keeping the tool steady.
And, as you simply change the bits in the end of an electric screwdriver, you can easily carry around the equivalent of a whole toolbox full of manual screwdrivers. A small electric screwdriver won&#;t replace a heavy duty combi drill for driving home huge decking screws or concrete anchors, but it&#;s an ideal companion for anyone who does home or garden DIY.
The most powerful electric screwdriver on our list is rated at 5.5 Nm of torque. That&#;s enough to drive a screw into a piece of soft timber, especially if you have drilled a pilot hole first. It&#;s powerful enough to put together flat pack garden furniture and much faster than using a manual screwdriver as well.
A torque selector allows you to control the turning power, or torque, on your electric screwdriver, or drill. Usually numbered and controlled by a selector ring just behind the bit holder, the higher the number the more power the screwdriver will put into the screw. If you&#;re working with delicate surfaces or you don&#;t want to overtighten a screw, you select a lower number, but if you want to drive a large diameter screw into a piece of wood, you&#;ll need to choose a higher number.
The BBC Gardeners' World Magazine reviews team tested a range of electric screwdrivers with each used to drive a variety of screws into different materials to see how they fared. They were assessed according to the following criteria with equal marks attributed to each:
For more information on our testing process, see How we review
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For DIY projects that call for a lot of manual screwdriving in places too tight for a trusty drill, an electric screwdriver may just be the power tool for the job. Electric screwdrivers work similarly to drills but are more compact, allowing users to get into tighter locations, like under the basement stairs or behind the furnace.
The best electric screwdrivers have powerful torque and ergonomic shapes that fit easily into the hand for a firm grip and precise control. Their motorized torque prevents the wrist strain and hand fatigue that come with using a manual screwdriver, making them an ideal option for many projects.
We wanted to make sure we were suggesting only the best electric screwdrivers to add to a tool box, so we tested the following models in a variety of applications. Read on to learn more about what we found.
Photo: Tom Scalisi for Bob VilaBefore buying an electric screwdriver, be sure that it&#;s really the tool for the job. To that end, there are a few things to keep in mind.
Manual screwdrivers are less expensive than electric screwdrivers and don&#;t require a battery source for use. Users have to rely on their own power to achieve sufficient torque from a manual screwdriver, which can be difficult when working with harder materials like oak, mahogany, or ebony wood.
An electric screwdriver offers more power and does the work for the user. With large projects that require driving many screws in a short time frame, an electric screwdriver is a great option. For jobs that require a lot of torque to drive large screws deep into concrete or metal, then a drill or impact driver may be more suitable.
Electric screwdrivers fill the gap between a manual screwdriver and a drill to provide a more balanced driving experience that won&#;t strip screws or wear the user out. If that sounds like the right tool, then read on.
We wanted to make sure this buying guide suggested only the best electric screwdrivers, so we rounded up some top-tier models and put them through hands-on testing. Here&#;s what we did:
First, we put them through a torture test of sorts. We found a piece of wet, dense-grain Douglas fir and drove standard exterior-grade screws into it as well as standard construction screws. We timed how long it took each of the cordless screwdrivers to remove the exterior screws, switch directions, and drive them back down. We then switched bits in the middle of the test and moved to the construction screws to repeat the process. This test told us quite a bit about these models&#; power output, as some began to overheat in hand or simply couldn&#;t handle the task.
Next, we tested ease of use. It just so happened that there was a kitchen cabinet remodel going on in one of our houses, and we used these electric screwdrivers to attach cabinet hardware. With swinging cabinet doors and raised heights to work with, this can be a pain with traditional power tools. Most of the models excelled here.
Finally, we took an ill-advised venture into electronic repair, using each of these models to remove and replace screws in a vacuum, a TV monitor, and an old Xbox controller. We lost some screws, and these items may never work correctly again, but we were able to assess these screwdrivers&#; usefulness in these scenarios.
Photo: Tom Scalisi for Bob VilaThese models are among the best electric screwdrivers available based on price, effectiveness, and reputation. We put them through their paces, testing their power and ease of use.
Photo: amazon.com
This Bob Vila Approved product carries our brand&#;s highest level of recommendation.
Bob Vila Approved recognizes the household and DIY products that impressed us most in our real-world testing and that exemplify core values of the Bob Vila brand, including craftsmanship, innovation, and value for the dollar. Winners of this designation come recommended by our professional review team and are personally approved by Bob Vila.
When the job calls for a high-quality electric screwdriver that&#;s both compact and comfortable to use, there are few better options than the Bosch GO Professional Cordless Electric Screwdriver. This in-line electric screwdriver features a 3.6V rechargeable battery built into the screwdriver, and it comes with two bits, a charger, and a hard carrying case.
This electric screwdriver has plenty of features to boast about. It has a five-position adjustable clutch, with a sixth position for maximum power (5 Nm at 360 rpm). It also offers Smart Stop tech, which stops the driver bit when it begins to slip to prevent stripping the screw. It also has two modes of activation: press-button or pressure-sensitive, activating as the user pushes the bit firmly against the screw. It also has an electronic brake, which is supposed to stop the bit as soon as the pressure is released.
In all honesty, this electric screwdriver was everything we&#;d hoped it would be. It&#;s powerful, compact, and comfortable. It had no issue driving screws in and out of our wet framing wood despite its compact size. We really enjoyed the pressure-sensitive trigger mode as we felt it was the easiest activation method in this lineup. However, the push button was a bit sensitive for our taste, often activating before we were ready to fasten.
Get the Bosch GO electric screwdriver at Amazon.
Photo: amazon.com
DIYers searching for an electric screwdriver that bridges the gap between a manual screwdriver and a full-blown power drill should consider Milkwaukee&#;s M12 Electric Screwdriver Kit. This sturdy screwdriver comes with a soft carrying case, a charger, and two 1.5-amp batteries for plenty of runtime on heavy-duty projects.
This model from Milwaukee features a staggering 19.8 Nm (175 inch-pounds) of torque, providing plenty of punch for stubborn screws. And, it can drive or remove screws at speeds up to 500 rpm. This electric screwdriver also features an adjustable clutch with 15 settings and a drilling mode as well as an onboard LED work light, a built-in battery gauge, and a belt clip.
This is one heavy-duty screwdriver, and we thoroughly enjoyed using it during our tests. We appreciated the adjustable clutch first, as 19.8 Nm is far too much for electrical plates and some electronics. Also, we liked that it came with two batteries and a carrying case, though its sturdy construction tells us it doesn&#;t really need the protection. The grip was the most comfortable in our tests, with well-designed ergonomics and a rubber texture. However, it is considerably longer with the battery attached than most of the others on this list, making it slightly more difficult to manipulate in tight spaces. Our only real complaint is that it&#;s almost as heavy as a standard drill.
Get the Milwaukee electric screwdriver at The Home Depot.
Photo: amazon.com
This variable-grip electric screwdriver can be adjusted from in-line at zero degrees to a pistol grip at nearly 90 degrees for enhanced maneuverability. The 4V 1.5Ah battery provides enough power for very light-duty DIY tasks like hanging pictures, removing remote-control screws, or replacing home signage.
This screwdriver is a bargain selection that won&#;t leave shoppers&#; wallets too light after purchase. It also includes a light that can be used on its own as a flashlight or for light-guided screwdriver use, and at just 1 pound, it won&#;t leave arms aching.
The one thing that we feel this screwdriver really has going for it is its price point. For the price, it&#;s an extremely good deal. It has flexible grip positions, a relatively comfortable trigger, and it&#;s lightweight. We do think it&#;s very underpowered for anything more than the tasks we described above, and the light is very weak, but for the price, it&#;s a great option.
Get the Black+Decker 4V Max electric screwdriver at Amazon, Lowe&#;s, The Home Depot, or Acme Tools.
Photo: amazon.com
DeWalt&#;s 8V Max Gyroscopic Electric Screwdriver Kit might be one of the most flexible screwdriver options on the market. This model features a convertible handle that twists to provide an in-line grip or a pistol grip, allowing users to choose the most comfortable position for their needs. And, to add to the comfort, this model doesn&#;t have a trigger or activation button. With just a twist of the wrist, the gyroscopic action activates, driving the screw until the user twists back.
This model comes with a battery, charger, and a soft carrying case. It also has a bright LED ring around the driver bit and a built-in battery gauge for tracking the remaining juice. As far as the power and speed, it offers 4.5 Nm (40 inch-pounds) of torque and 430 rpm, all of which the user can control with the 15-setting clutch.
Testing proved what we already believed to be the case: This is one sweet screwdriver. We liked the flexibility between the pistol or in-line grip, and the action felt more secure and sturdy than other flexible models. We&#;re still struggling to get the hang of the gyroscopic action, but the speed, torque, and comfortable rubber grip will make the adjustment worth it.
Get the DeWalt Gyroscopic electric screwdriver kit at Amazon.
Photo: amazon.com
For those looking for a powerful cordless screwdriver with the same grip as a manual screwdriver, the in-line design of the DeWalt 8V Max Gyroscopic In-Line Electric Screwdriver may be just the ticket. Users can charge the 8V 1Ah battery with the included battery docking station and, once charged, monitor the battery with the power indicator on the side of this lightweight 1-pound screwdriver.
The in-line design can be difficult to use in tight spaces, but the gyroscopic action that simply requires twisting a wrist to drive the bit makes it very convenient. Also, this model boasts several helpful features, including a built-in LED light, a smaller-size battery pack that can charge a battery in just 1 hour, a variable-speed setting of up to 430 rpm, and a torque of 4.5 Nm.
We&#;ll be honest. Even after hours of use and testing, we aren&#;t used to the gyroscopic action. We aren&#;t really able to get the hang of the speed adjustment yet, but we do appreciate the technology. Beyond getting the hang of it, we liked that it had plenty of power and speed as well as a built-in LED work light. The grip was also extremely comfortable, which is probably even more important with a gyroscopic screwdriver than it normally is given that the user has to twist their hand to adjust the speed.
Get the DeWalt Gyroscopic In-Line electric screwdriver at Amazon, Lowe&#;s, Acme Tools, or Toolbarn.
Photo: amazon.com
Would-be DIYers who worry about not having the right bits or kits should check out this electric screwdriver from Makita. This variable-grip screwdriver allows the user to choose between in-line or pistol-grip orientation, and it comes with an 81-piece kit full of driver bits and attachments, so users can almost always have what they need.
This screwdriver features a built-in 3.6V battery with a 1.5Ah rating, as well as a USB charging cord. It has an LED light that activates with a switch on the bottom of the screwdriver. It also has a thumb-activated trigger for forward and reverse operation, provides 4 Nm of torque, and spins at up to 220 rpm.
Let&#;s start with our biggest complaint: the hard plastic handle. It&#;s not great. There isn&#;t any rubber overmolding or finger contours to promote grip. This is especially troublesome since this model has a thumb trigger. This combo makes holding onto it a bit of a challenge, as it prevents the user from wrapping their thumb around the handle. Otherwise, we really appreciated the full kit of bits, the variable grip, and the fact that it&#;s quite a value at its price point.
Get the Makita electric screwdriver at Amazon.
Photo: amazon.com
Folks who&#;d like to keep a handy, powerful electric screwdriver on hand for tough tasks but don&#;t want to lug a full-size drill around may appreciate this model from Bosch. The PS21-2A features a top speed of 350 rpm in one setting, and a top speed of 1,300 rpm in the other. And, this model produces up to 30 Nm (265 inch-pounds) of torque.
This kit is relatively bare bones, as it comes with two 12V 2Ah batteries, a charger, the screwdriver, and a carrying case. However, its power makes up for any lack of accessories. Plus, for those worried about it having too much power for small electronics screws or fastening cabinet hardware, this model features a 20-position clutch, preventing it from stripping screws or overtightening fasteners in delicate hardware, as well as an additional position for drilling.
We thought this electric screwdriver was excellent. It was the most powerful in testing, driving screws quickly, easily, and faster than other models in the test. We also found that it was the best blend of size and power&#;much smaller than even a compact impact driver. We appreciated that it came with 2Ah batteries, as the next closest in the comparison was only 1.5Ah. Also, the 20-position clutch was, well, clutch, as this model does have the ability to strip some screws. But otherwise, it has plenty of speed and torque for typical fastening needs, and the rubber grip made it comfortable for prolonged use&#;a good thing too, since it is a bit heavy.
Get the Bosch PS21-2A electric screwdriver at Amazon or Lowe&#;s.
Photo: amazon.com
If the electric screwdriver&#;s storage destination is the junk drawer, the Worx 4-Volt Lithium-Ion Cordless Rechargeable Screwdriver might be one of the best options out there. This light-duty screwdriver is compact, and it comes with a small hard case with bits, meaning DIYers will always have what they need in that junk drawer.
This model features a 4V 1.5Ah battery, and it provides up to 300 rpm of speed and 5 Nm of torque (44 inch-pounds). Users can dial that torque up or down with the press of a button, choosing from three settings. It also has an ergonomic rubber grip as well as two built-in LEDs to illuminate the fastener.
At first use, we struggled to find a place for this model from Worx. While it says it provides up to 5 Nm of torque, that sure felt like an overestimation to us. However, once we started using it for electronics, the comfortable grip, speed, thumb-activated button, and torque control started to shine. We also liked that this tool feels sturdy and well constructed in the hand. It was at that point we realized that despite the seemingly overestimated power rating, this is a quality tool that has a place in most DIYers&#; tool kits.
Get the Worx 4V electric screwdriver at Amazon or The Home Depot.
Based on testing, these three models did not meet our standards.
Black+Decker AS6NG Cordless Electric Screwdriver
The Black+Decker AS6NG Cordless Electric Screwdriver offers a budget-minded price point, but for a similar price, there are models with much more power that are much more comfortable than this model&#;s semi-textured plastic handle.
Worx WX255L SD Driver With Screw Holder
The Worx WX255L SD Driver With Screw Holder seemed essentially like a gimmick, with the screw-holder attachment falling off constantly and the bit-changing magazine being frustratingly difficult to manipulate, especially with gloved fingers. It was also underpowered for a pistol-grip model, as it was unable to drive screws through denser wood grain, where other models had no issue.
Skil Rechargeable 4V Screwdriver With Circuit Sensor
The Skil Rechargeable 4V Screwdriver With Circuit Sensor has an extremely awkward activation collar and a very weak drive. It could not handle our torture test, and the fact that it requires two hands to hold the screwdriver in place and then switch the collar in most cases is a massive inconvenience.
Don&#;t invest in a new electric screwdriver without learning about its most important features. The considerations below will help with finding the best cordless screwdriver for any need.
With motorized power, electric screwdrivers can replace manual screwdrivers for all but the most basic jobs. However, not everyone needs a heavy-duty electric screwdriver, so be sure to decide what it will be used for before buying one.
Most cordless models come with a lithium-ion rechargeable battery, while others accept disposable batteries to eliminate the recharging wait time.
The power output of an electric screwdriver is measured in volts.
Ultimately, pairing a light- to medium-duty electric screwdriver with a powerful cordless drill is likely the best option for a cost-effective solution for just about any screwdriver need.
Torque is a measurement of how much force an electric screwdriver is capable of exerting on a screw in either the clockwise or counterclockwise direction. The higher the amount of torque, the more force is used to turn the screw.
Torque is measured in Newton meters (Nm). (Torque may also be expressed in inch pounds; 1 Nm equals 8.851 inch-pounds.) Electric screwdrivers can have a torque between 1 Nm on the lighter side and up to 27 Nm for heavy-duty models. However, 27 Nm is quite high for an electric screwdriver, with most options falling between 3 and 10 Nm, which is more than enough force for the majority of DIY projects. If shoppers are concerned about regularly working with high-density material, they should opt for a higher-torque option.
The speed of an electric screwdriver is measured in revolutions per minute (rpm). Lighter electric screwdrivers will have an average speed of 150 to 300 rpm, but they can exceed this number.
Keep in mind that while a higher speed means that the screwdriver rotates faster, this can cause the screwdriver bit to slip and strip the screw if the user is not able to control the tool. This is a good consideration for any increase in power, speed, or torque for an electric screwdriver. The best electric screwdrivers have variable-speed control to suit different tasks.
For most people, a constant rate of 150 rpm is already more than what is used to drive screws manually, so any of these speed options will help get the job done quickly and without fatigue.
Electric screwdrivers come in several forms for maneuverability, including fixed-pistol grip, variable grip, and in-line.
The battery power for an electric screwdriver is measured using milliamp hours (mAh) for small batteries or amp hours (Ah) for larger batteries, with 1,000 mAh equaling 1Ah. A 1Ah battery is capable of producing 1 amp of energy for 1 hour of time.
Alternatively, a 1Ah battery can produce 10 amps of energy but can do so for only 6 minutes. Keep in mind that cordless screwdrivers are used only intermittently on projects, and a 1Ah battery loses power only when the screwdriver is in use. Lithium-battery options are the most common.
The average Ah rating for electric screwdriver batteries is between 0.5 and 2.5Ah. When it comes to an electric screwdriver&#;s battery life, users should consider the following: the availability of electric power for recharging; the average length of use; and the power, torque, and speed requirements of the screwdriver, as higher energy output drains a battery faster.
The size of the electric screwdriver is important to consider because size ultimately indicates the power of the tool. A larger tool has a more powerful motor, but keep in mind that it will be heavier as well.
Electric screwdrivers tend to weigh between 1 and 3 pounds, though some heavy-duty exceptions can weigh up to 5 pounds. A 1- or 2-pound screwdriver may not seem like a lot of weight to manage, but when used for a long period of time, even a lightweight screwdriver can cause some hand, arm, and shoulder fatigue.
Electric screwdrivers, like most common power tools, come with various features intended to make the job easier and set them apart from other models.
Still not completely confident about which kind of electric screwdriver you need? Take a look at these popular questions and their answers below.
Q. Is an impact driver the same as an electric screwdriver?Impact drivers and electric screwdrivers share some similarities, but they are different tools. Think of an electric screwdriver as a smaller, lighter, and less powerful version of an impact driver. An electric screwdriver is designed for occasional use, while an impact driver can withstand frequent, prolonged usage. An impact driver is built for heavier-duty tasks&#;basically a midpoint between an electric screwdriver and a power drill.
Q. How do I choose the right electric screwdriver?Think of the tasks you&#;ll take on with the screwdriver. For light- to medium-duty tasks, like assembling furniture and hanging wall decorations, 3 to 7V are sufficient. Heavy-duty jobs involving high-density material like hardwood require 8V or more. Battery life for electric screwdrivers varies from 0.5 to 2.5Ah, with higher values amounting to longer runtimes. The force produced by an electric screwdriver, or torque, ranges from 1 Nm on the lighter side up to 27 Nm for heavy-duty models.
Also, consider the grip. Fixed-pistol grip electric screwdrivers feature a small handle and trigger operation. Variable-grip electric screwdrivers can bend and rotate to reposition the grip for enhanced maneuverability. In-line grip electric screwdrivers feature a straight grip that more closely resembles a manual screwdriver.
Beyond these essential considerations, there are additional features available, such as variable speed, torque adjustment, built-in LED lights, and included screwdriver bits.
One thousand mAh is equal to 1Ah, and both are measurements of how much electrical current is discharged from a battery over a period of 1 hour. Higher numbers equate to a longer battery runtime for electric screwdrivers, with shorter lifespans being measured in mAh and longer lifespans measured in Ah.
Q. How can I make the battery life last longer in electric screwdrivers?To make the battery life last longer in an electric screwdriver, always charge the battery fully, then use the screwdriver until the battery runs out. Don&#;t leave the battery charging longer than necessary, and do not remove the battery from the charger if it has only a partial charge.
When storing the electric screwdriver, store away from high heat or freezing temperatures. Also avoid storing the battery near magnetic objects and metals, as these materials can seep power from the battery.
Tom Scalisi is a full-time DIY and construction writer for many of the largest websites in the industry, including BobVila.com, This Old House, Family Handyman, and Forbes as well as his own pest control blog. He spent years working in the trades and industrial building maintenance.
Additional research provided by Timothy Dale.
If you are looking for more details, kindly visit Brushless Electric Screwdriver Manufacturer.
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