Cordless drills were created to assist users in simple and repetitive tasks that need swift completions. So you don’t need them to pack too much power, just for the sake of working. Today, the cordless drill lineups feature products with varied ratings from the light-duty products with 4-8 volts, to the more capable drills with 12-18 volts ratings. For simple screw driving tasks on electronic components, you’ll find products from the first line-up having lighter weights and more convenient uses. But for most household drilling tasks, products with 12-18 volts ratings are often preferred by homeowners. They pack enough powers and still come with a relatively lightweight for easy-carrying purposes. And sometimes, you can even go up to the 20V and 22V products, but generally, they’re for drilling through metals and large pieces of woods, and we consider these being too much for simple household tasks.