What Is an Electric Screwdriver?
An electric screwdriver is motorized drills that can easily drill holes in wood and metal. There are many types of electric screwdriver, and you can select the number of revolutions and power. Even hard products can be drilled efficiently if you choose the right electric screwdriver for your conditions.
An electric screwdriver is available in both power-cord and battery-powered types. The power cord type can be used continuously for a longer time and has more power. Many battery-powered electric screwdrivers are small and lightweight and can be handled by women.
Note that batteries and chargers may be sold separately.
Uses of Electric Screwdrivers
Electric screwdrivers are used for drilling holes in wood, metal, and other materials. There are three types of electric drills: wood, metal, and iron. Electric screwdrivers are also often used in DIY projects, such as furniture assembly.
Basically, electric screwdrivers are specialized for drilling holes and cannot be used for tightening screws. However, some electric screwdrivers with variable speed functions can be used for screw tightening. If you want to tighten screws as well as drill holes, use a screwdriver drill.
Principle of Electric Screwdrivers
Electric screwdrivers consist of a motor, reduction gear, and drill chuck.
A drill bit is attached to the tip of the drill. The hole is drilled with a spiral groove so that shavings can be efficiently pushed outward. Check the maximum drilling capacity, diameter, and length of the drill to see if it is suitable for the size and material of the hole to be drilled. One with higher power consumption has more power.
When using an electric screwdriver, set the drill on the rotating shaft. The motor rotates the rotating shaft and transmits the rotation to the drill, which then drills. The speed of rotation of the motor is slowed down and adjusted by gears. To prevent misalignment, a guide hole is drilled, or a guide is provided. When using electric screwdrivers, protective goggles and dust masks should be worn since the drilled material will fly around.
Once you become accustomed to working with the drill, you can hold it with one hand, but holding it with both hands is more stable and produces a better result. Some larger products have side handles for better stability.
There are two types of chucks for replacing bits: keyed chucks and keyless chucks. Keyless chucks are convenient because you can change the bit without a tool.
How to Use Electric Screwdrivers
This section explains how to use electric screwdrivers for beginners who have never handled one before. While taking sufficient safety measures, learn how to use the electric screwdrivers with the correct knowledge in order to get the most out of its performance.
How to Hold an Electric Screwdriver
First, we discuss how to hold the electric screwdrivers. Electric screwdrivers are shaped like a gun and you may have an image of holding it with one hand, but holding it with both hands increases stability and allows you to drill holes accurately.
The dominant hand should hold the grip of the electric screwdrivers and apply force in a straight line in the direction of drilling, while the non-dominant hand should support the body of the drill. When pushing the electric screwdrivers hard, slightly push the main unit to assist.
Most very powerful large electric screwdrivers have a handle in addition to the normal grip and are basically two-handed. Hold the grip and handle with both hands and hold them firmly. This will help stabilize the drilling trajectory. An example of a large electric screwdrivers are vibration drill used to drill holes in concrete and other hard materials.
Hole Drilling Method
The next step is the drilling method. When drilling holes, it is not possible to change the trajectory in the middle of the process, so be sure to drill precisely set guide holes with a slight hammer or cone before starting the production process. Re-doing the drilling or wasting time drilling holes in the wrong places can weaken the durability of the material and cause it to crack. Drill straight holes, taking care to avoid slanting the electric screwdrivers.
Precautions for Penetration
Finally, a word of caution when penetrating. When drilling a hole through a material, the chuck of the electric screwdrivers may hit the material surface with excessive force at the moment of penetration. This is very dangerous because if the chuck hits the material too hard, the material may be damaged or the electric screwdrivers may be accidentally dropped due to excessive momentum. If the electric screwdrivers are about to penetrate, we recommend you reduce the power of the push-in force, slow down the speed of rotation, and drill the hole carefully.