2022 Best Household Power Drill and Impact Drill Guide

Whether you are just learning the basics of simple maintenance or are taking on a second addition to the house, a good drill is essential. I strongly recommend that everyone has a set! Let's take a brief introduction, and recommend several super-plenary and not expensive power drill packs to everyone and help you to make a right decision.

Cordless or Corded Power Drill, Which one is better?

The cordless power drill relies only by battery power, but corded drill is inserted into the power outlet.

Convenience

A cordless power drill will provide more convenience. When you are not close to the power outlet or need to work without electricity, or even working in a narrow area. A cordless power drill will be the best choice for you.

However, a cordless power drill battery requires regular charging. A backup battery is required if you need to use it frequently to ensure it’s always powerful.

Tips: Common cordless power drill batteries include nickel-cadmium (NiCd or NiCAD) and lithium ions (Li-ION). Lithium-ion batteries are lighter, and smaller than nickel-cadmium batteries at the same voltage. Lithium-ion batteries are more storage, and the power can be kept for two months.

Power

However, if you really use the socket, and your work requires a larger torque, higher efficiency, and stronger durability to handle different materials, then a corded power drill is undoubtedly a more sensible choice.

But cordless power drill provides higher maneuver and multiple uses. 

• 4-8 volt voltage drills will work well for screwing but are not able to do punch or wall drilling work. 
• 12-18 volts will be usefully for almost all homeowners, used as a screwdriver, or punch on wood and metal. 

High power models can handle heavier work, but higher voltages often mean larger and heavier power drills and batteries.

Service life

Use a corded power drill, no longer have to worry about whether the battery will be self-destructive or stored for a long time. Even if you use only a few drills in a year, the drill should be started like yesterday.

Difference between Power drill, impact drill, electric hammer

Not every power drill is called impact drill, we usually distinguish them as follow:

Drill / Driver

Act as an electric screwdriver or power drill function with different drills. The Jaw Chuck is generally three iron, which can adjust the different sizes of the drill bit, with different gear positions and torque settings. But the torque of the power drill is smaller, suitable for tightening screws, and caves on the wood, but cannot be used for hard walls.

Impact Driver

Although the name belt Impact, but is a shock screwdriver, not a shock drill.  The impact driver will be turning while tapping (impact) along the direction of the rotation, that is, the impact is 90 ° with the drill bit. 

Have you seen the workers who unload tires? If the screw is too tight, when he is unliked, he will take a hammer to hit the wrench, which helps to loosen the screw. Its main function is to screw the screw unloading screw, which can only be drilled with it when it is urgent. 

The feature torque is large, suitable for drilling or screwing on a very hard object, such as solid wood, cement wall, or very large, long screw; the disadvantage is that the small screw is easy to measure - strength is not always The bigger it, the better! The muzzle of the shock screwdriver is generally a fixed hexagon that can only be used with a fixed drill bit.

Hammer Drill

This is the impact drill we say, equivalent to using a drill while holding a hammer down. The traditional impact drill is mainly used for drilling holes on very hard ground, cement, and brick, which is normally not used at home.

To learn more about this topic, please refer to another article from Sunthen Hammer Drill vs Impact Drill vs Power Drill, What’s the difference?

The figure above is a example of power drill and impact drill:

• The most obvious difference in the appearance is that the chuck of the power drill (left) is pointed (three iron, adjustable size), and the chuck of the impact drill (right) is flat, which is exactly a six-angle mouth (not Circular), only fixed same size drill (size is not adjustable).
• As to the parameters, the maximum difference is the torque: the torque of the power drill is 265 in-lbs, about 30 NM, while the impact drill is as high as 930 in-lbs, about 105 NM, about 3 times higher than the power drill.

How to Choose a right electrical drill?

Size

The power drill has a size of 1/4 inches, 3/8 inches and 1/2 inches. These dimensions refer to the size of the chuck, indicating the size of the largest drill. 

• The power drill of 1/4 inch drill chuck is suitable for some lightweight work, such as screws;
• 3/8-inch power drills can be adapted to various drills, suitable for all common tasks inside and outside;
• 1/2 inches power drill can handle more heavy works.

The power drill of a small drill chuck is usually designed as very light, and compact, but there may be not enough power to drill through the dense material. If you need to process hard materials such as hardwood and metal, look for a larger drill with a larger drill.

Speed

Variable speed drill with adjustable clutch can be used for various drill bits and different materials. Different speeds and torque or rotational force are required for drilling cork, hardwood, metal and masonry. 

• When acting on hard materials, or when using a large drill bit, it takes low speed and large torque;
• When acting on a soft material and using a small drill bit, high speed and low torque are required. 

Adjustable speed drills can set different torque depending on the situation. Adjust the clutch properly to prevent you from screwing too deep while reducing the possibility of screws falling or broken.

Efficiency

Some power drills need the gadget to tighten and release the drill chuck, which is called a Key. There are also many power drills without "keys", directly tightened or loosen the drill chuck directly. If you need often to replace the drill, you don't need a "key", which will make your work easier.

Brushless Motor

Simply speaking, power drills with brushless motor technology are more efficient, higher power, simpler, more durable, and lighter. As for the shortcomings, it is more expensive.

Built-in LED light and built-in level

Built-in LED lights help you view the direction of the borehole or screws. Built-in levels help you drill more accurately and install fasteners. Heavy-duty drills can consider models with side handles.

Other Accessories

Other accessories include storage boxes, spare batteries, drill, and screw head sets. If you want to buy a cordless power drill, check if it comes with a charger.

Summary

You don't have to make yourself crazy to think about all possible work you’ll have for your new tool. Look at the three situations below and see where you are suitable. Usually, a Best home use drill bit may be a light maintenance and repair. If you ever need more tool than you have, you can step up in power and options. Or rent a more powerful drill for those projects that require one.

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