How to Use an Electric Drill | Clean, Straight Holes

A drill is one of the most useful tools in a garage or shed, but a few wrong moves turn a simple hole into a ruined board or a spinning piece of stock. The fundamentals are easy to master, and they apply to corded and cordless models alike.

Get the Drill and Bit Ready

Before plugging in or dropping in a battery, give the tool a quick once-over. Check the cord for fraying and the casing for cracks; if a battery is cracked or leaking, don’t use it. Make sure the chuck spins smoothly and the bit is straight — bent or loose bits cause wandering holes and kickback.

Pick the bit to match the material: a spur-point bit for clean wood entry, a high-speed steel twist bit for metal, and a carbide-tipped bit for masonry. Match the bit to the drill’s rated capacity — usually printed on the chuck — and never force a larger bit into a smaller chuck. With the power disconnected, insert the bit and tighten the chuck firmly. The Virginia Tech extension safety sheet on portable electric drills stresses this sequence: disconnect power before bit changes, and remove the chuck key before you start the tool.

Why Clamping the Workpiece Matters

A loose board can spin with the bit and injure your hand. Clamp the workpiece to a bench so it can’t move; never hold material with one hand while operating the drill with the other. Mark your spot clearly, and for large holes or a precise start, use a center punch to create a small divot — the bit will seat in that indent instead of skating across the surface.

Position the bit on your mark. Hold the drill square to the surface, perpendicular in both directions; if the drill tilts, the hole walks crooked. The Canadian Centre for Occupational Health and Safety (CCOHS) guidance on powered hand tools recommends using the auxiliary handle for continuous or heavy work, and keeping both hands on whatever grips the tool offers.

Drilling: Speed, Pressure, and the Moment of Breakthrough

Start the drill at low speed and let the bit touch the surface with light, steady pressure. Slow speed gives you control and stops the bit from wandering; once the hole is established, you can speed up if the bit is cutting smoothly. Metal and harder materials need slower speeds, while wood tolerates faster rotation. CCOHS notes that using the correct speed for the material prevents the bit from overheating or binding.

Let the drill do the work. Pressing hard doesn’t cut faster — it strains the motor, dulls the bit, and risks grabbing. Keep the drill square to the surface, and when you’re close to breaking through the other side, ease off the pressure. Electrical Safety First, a UK safety charity, highlights that reducing pressure just before breakthrough prevents splintering and the sudden jerk when the bit exits. The drill can catch and twist if you shove it through.

When the hole is done, let the bit stop completely before setting the drill down. Unplug or remove the battery, then loosen the chuck, remove the bit, and store the tool. If you’re stopping for longer, keep the drill out of the way so nobody trips over the cord or grabs the tool hot.

Safety Habits That Prevent Injuries

Eye protection is non-negotiable — wear safety glasses or goggles every time, because chips and dust fly without warning. Skip loose clothing, jewelry, and dangling hair around the rotating chuck. Keep cords clear of the cutting path, and never carry or lower a drill by its cord. If the bit binds, release the trigger immediately, and never try to slow the spinning bit with your hand. The CCOHS guidance on drills also warns against using the tool in wet conditions or near flammable fumes — a spark from the motor can ignite vapors.

For cordless models, charge and store batteries per the manufacturer’s instructions, always using the recommended charger and battery type for that tool.

Neglecting the basics is where most mistakes happen. The most common errors are forgetting to unplug before a bit change, skipping the clamp, pressing too hard, starting at high speed, and tilting the drill off-square. Each one is easy to avoid once you build the habit of working deliberately.

For a dependable drill that makes these steps easier, our tested roundup of the best electric drills covers models that hold up to steady workshop and garden use.