About Power Drills

About Power Drills

Cordless or corded, power drills offer many useful features

By Sabah Karimi

Electrician Using Power Drill
Photo by iStockphoto.comBookmark and Share

When you are working on a home improvement project or doing repair work in an outdoor setting, you can complete the project efficiently and effectively with a high-quality power drill. Corded and cordless power drills are essential tools for construction and repair projects in the home, workshop or construction site, and each type is designed with certain features that make it easy to drive or remove nails, drill a hole and perform other functions.

Function

Power drills are handheld devices that can be used in both an indoor or outdoor setting, depending on their construction. Power drills are powered by electricity from a wall outlet or a battery, and can drill into hard surfaces such as wood, brick or concrete. These drills are designed to replace a hammer and nail, screwdriver or nail gun, as the drill bit and chuck of the power drill can perform many of these functions within seconds. Power drills are used to drill holes in wood, masonry, metal, plastic and other hard surfaces; screw and fasten bolts; and some can remove nails with a reverse action.

Types

The two main types of power drills are corded drills and cordless drills. Corded drills depend on an electrical socket for power, while cordless drills depend on a removable battery pack or set of batteries for power. Both types of power drills are available in several different sizes and are designed with special features and functions, speed settings and torque settings.

Features

Some of the key features of a power drill include: variable speeds, hammer action, variable torque settings, interchangeable drill bits, integrated magnetic bit holder, depth rod, reverse action capabilities and integrated bubble levels to ensure straight drilling. Some drills also feature a front secondary handle (for drilling with both hands) or a built-in LED light (for working in the dark). Most cordless drills come with two batteries, allowing you to use one while the other is charging. Although most major tool manufacturer's require that you use their brand of battery with their power drills, you can purchase other cordless tools -- saws, drills, etc. -- that use the same batteries that come with your drill.

Benefits

The primary benefit of using power drills instead of standard hand tools such as a hammer, wrench or a belt hole puncher is that the drill can perform basic functions within seconds and with great accuracy. Interchangeable drill bits and screw extractors can help you perform basic drilling functions safely and efficiently. Power drills are also relatively lightweight and can be used for a variety of construction and hobby projects in both indoor and outdoor settings, depending on their power source.

Considerations

The size of the material you are working with and the size of the drill bit will determine the ideal torque speed of your drill. When purchasing a power drill for a specific project, make sure you consider the thickness of the material and the types of drill bits available for the specific model of your drill. Cordless drills are measured in volts, while corded drills are measured in amps. If you are looking for the most lightweight model of a power drill, you may consider purchasing a drill with a lower voltage. Higher voltage drills are typically powered by a heavier motor and may be more challenging to handle for smaller projects. For corded drills, the higher the amperage motor, the heavier and more powerful the drill.

About the Author

Sabah Karimi is a regular contributor to DexKnows.

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