The 10 Best Electric Screwdrivers
10. Worx XTD
- offset chuck gets in tight corners
- auto spindle lock for manual use
- trigger design is rather clunky
|Rating||4.1 / 5.0|
9. NovelLife ES121
- oled status display
- 5 torque adjustment levels
- accepts 4-millimeter bits only
|Model||ES121 Electric Screwdri|
|Rating||3.9 / 5.0|
8. DeWalt DW920K
- outperforms its 7-volt rating
- backed by a 3-year warranty
- costly for a single-function tool
|Rating||3.6 / 5.0|
7. Dewalt 12V Kit
- charging doesn't interrupt the job
- comes with a handy carrying bag
- not as strong as comparable options
|Rating||3.8 / 5.0|
6. Dewalt DCF885
- a world-renowned american brand
- stubby profile for tight areas
- a bit overkill for everyday projects
|Rating||3.9 / 5.0|
5. Worx Semi-Automatic
- catches screws as they're removed
- 6 internal quick-access bits
- a thoughtful and well-priced design
|Rating||3.8 / 5.0|
4. Black & Decker LDX120
- continuously variable speed trigger
- thousands of satisfied owners
- an exceptional overall value
|Rating||4.6 / 5.0|
3. Hitachi Dual Position
- one drill and 21 clutch settings
- versatile 90-degree or straight grip
- good for large and small jobs
|Rating||4.6 / 5.0|
2. Bosch PS31
- comes with 2 batteries and a charger
- stored in a soft-sided case
- includes a 21-piece bit set
|Rating||5.0 / 5.0|
1. Skil IXO
- fits easily in a drawer or tool box
- light weight for strain-free use
- recharges via micro usb
|Rating||4.9 / 5.0|
With Versatility Comes Power
Add one part vodka to one part orange juice, some ice, and your equipment is magically assembled. Okay, not really. But all joking aside, whether you work in construction for a living, are putting together a new console table to support the family room television, or you're building a series of storage shelves, chances are you're using a traditional screwdriver to fasten and secure any individual components. Despite its basic appearance, the tool is extremely versatile, even when only considering the manual screwdriver. But its source of convenience doesn't stop there. With the addition of electrical power, you can free yourself from having to contort into awkward positions just to drive that screw in or out of a hole, making that console table or shelving project come together much more quickly and with less hypothetical cursing on the job.
Different from its manual counterpart, the electric screwdriver combines several components in order to operate efficiently, including a rechargeable battery, a power switch, an electric motor, an internal gear system, a locking mechanism for the chuck, and the chuck itself. Drawing power of either positive or negative polarity from the device's battery, the switch sends power to the motor, causing the motor to spin in either a forward or reverse direction. When the switch is in its neutral (or idle) position, no electrical current is flowing, as neither of the motor's contacts have been signaled. When one side of the switch is depressed, an electric current flows from the battery directly to one of the motor's contacts, causing the chuck to spin.
While the motor is an important part of the device, the screwdriver's gear system is no less integral of a component. Depending on the specific tool being used, it will employ some degree of gear reduction in order to augment the motor's power. In terms of the electric screwdriver, gear reduction is a fancy way of explaining how the tool's internal gear system works to decrease motor speed, while inversely increasing the amount of available torque for the chuck to twist the screwdriver bit in one direction or the other. While the motor spins faster than the chuck, the gear system essentially exchanges that generated speed for increased torque, effortlessly driving a screw into a hunk of wood or piece of metal. It's important to note that gear reduction can provide the opposite effect through increased speed and reduced torque, such as in the operation of wind turbines to generate electricity.
One of the most obvious benefits over its manual counterparts is simple convenience. Use of a rechargeable battery, for example, frees the operator from the restrictions imposed by electrical sockets. The electric screwdriver significantly increases efficiency for driving screws into tight spots and awkward angles without having to use manual twisting motions. Some of the most modern electric screwdrivers also leverage gyroscopic technology, allowing them to automatically change speed and direction based on the position of the operator's wrist.
Versatility For Getting The Job Done Quickly
Several practical considerations should be kept in mind when selecting the best electric screwdriver for your needs. You should be aware that these tools fall into three general categories, including basic electric models, impact drivers, and drill drivers. The basic option is ideal for light tasks in small spaces, whereas the impact and drill varieties deliver greater power output and are designed for heavy-duty applications that require as much torque as possible to bore into thick and heavy work pieces.
Voltage output of the tool's internal battery is definitely important. The higher the voltage, the more likely you are to complete a job quickly before a recharge becomes necessary. Some of the best screwdrivers deliver a voltage output as high as seven volts.
Consider an option equipped with an adjustable, rubberized handle and multi-position head, so you can easily grip the device and access tight spaces and awkward angles. Any electric screwdriver with built-in LED technology will make it extremely convenient for completing DIY assembly projects in dark areas or simply working at night. A device with variable speed control can accommodate a wide range of available screw sizes and work materials.
If you want to bypass the device's electric operation when needed, consider an option with a spindle lock, allowing you to use the tool as a traditional screwdriver.
A Brief History Of Electric Screwdrivers
Originally constructed from wood, the earliest screws date back to the times of ancient Rome and were used in the operation of both wine and olive presses. Metal screws were also used in a similar capacity for the printing and paper presses during the Middle Ages. Metal screws and nuts engineered for fastening objects together didn't appear until the 15th century.
The earliest types of manual screwdrivers were equipped with pear-shaped handles and originally designed for slotted screws. However, the mass production of high-quality screws was extremely difficult until the time of the Industrial Revolution.
By 1908, Canadian resident P. L. Robertson was the first to commercialize the manufacturing process for socket-head screws, which were known for having square-shaped recessed impressions on their heads. This made them a revolutionary development within the fastener industry at the time, as they were less prone to wear and tear. The invention of the Philips head screw in the 1930s made assembly line manufacturing a much more efficient process for the United States automotive industry.
The very first electric screwdriver was invented by Black and Decker in 1923, with the earliest models being corded. Since that time, the use of internal batteries with greater voltage capacities has made the cordless electric screwdriver the tool of choice for both DIY consumers and professionals alike.