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All About Power Drills

When deciding which drill to buy, think about how often you intend to use it and what you will use it for. Competition has forced down their cost, making it possible to buy a good piece of equipment for a reasonable price.

Excerpted from Do It Yourself Home Improvement

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Cordless Drill-Drivers

The most versatile drill, it is both a power drill and screwdriver. It is battery-operated, which makes it highly portable and easy to use. The battery detaches for recharging. The differences between types of drill-drivers are usually indicated by their level of power. The higher the battery's voltage, the more powerful the drill — most are in the range of 9.6 volts to 24 volts. A trigger allows control of the drill's speed. A keyless chuck makes it easy to change out bits. Some drill-drivers also have a hammer action.

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