Cordless drills for home repair

Cordless drills are electrical tools with a drill bit attached to the handle or body. The drill has a gear box, which converts the electrical energy into mechanical energy or torque .

The drill bit is made of abrasive or hard material, which allows the drill to make a hole in a variety of materials, for fixing screws without the user applying any pressure.

Earlier most drills had to be connected to an electric power supply while being used, however with advances in technology, cordless drills which use the energy stored in the batteries for generating the torque required for drilling holes, fixing screws and other operations

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