Cordless drills allow users to quickly and easily fasten objects using screws.
A portable drill allows users to drill holes and install fasteners without worrying about electrical cords. They are powered using rechargeable battery packs, and offer a high level of flexibility and convenience. Different types of portable drills can be used for basic household tasks or full-scale construction purposes. When comparing portable drills, consider factors like power, battery life, design and size to find the best model for your needs.
Instructions
1. Choose the right level of power. The power of a drill is rated in terms of volts, with standard household drills generally under 10 Volts. With higher voltages, users can drill into harder or denser objects, including metal. Keep in mind that higher voltages also mean heavier drills. For example, an 18-Volt unit weighs about twice as much as a 9.6-Volt unit, according to "Consumer Search."
2. Compare battery options. According to "Inside Woodworking," nickel cadium (NI-CA) batteries are cheaper than other battery packs, but also have a shorter lifespan. Nickel metal hydrid (Ni-MH) batteries cost more upfront, but last much longer. They not only hold a charge longer, but are also less likely to experience a reduced charging capacity over time.
3. Decide between keyless and keyed chuck models. Some cheap drills designed for use in the home feature a keyed chuck. This means that you'll need to use a small wrench to tighten the chuck every time you change bits. For faster bit changes, choose a drill with a keyless chuck. Note that some professional users may prefer keyed chucks to provide better hold on heavy-duty jobs.
4. Look for portable drills that offer variable speed. When you squeeze the trigger on a variable speed drill, the chuck begins to spin. The farther you squeeze the trigger, the faster the chuck will spin. Variable speed makes it much easier to install screws in drywall partitions, for instance, because you can use a light tough to prevent damage to the wall surface. Users who want to perform basic household tasks will have the most success using variable speed drills.
5. Visit hardware stores and tool suppliers to try out different portable drills. Compare things like weight and overall design to find the model that best fits your hand. Check to see if you can easily reach and press the trigger, or access reverse switches while operating the drill. Change bits to see how well the chuck grabs the bit, and to see if the drill holds the bit firmly during use. If you plan to use your drill for extended periods, weight and fit are the primary concern to minimize fatigue or blisters.
6. Ask what's included with each drill. Look for things like battery chargers, extra battery packs, carrying cases or bits. Homeowners who want a simple unit for household use will often be best off with a kit that includes all of these items. This eliminates the need to shop for the right bits or other components.
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