![]() ![]() Their batteries range in power from 12 to 20 volts, but their relatively small motors don’t spin or drive with the same force as heavy-duty or general-use drills. We also test light-duty drills, which are best-suited for small jobs around the house, such as assembling flat-packed furniture, changing a light fixture, or drilling into drywall. In fact, according to a recent CR member survey, two-thirds of those who own cordless drills have a model that’s 18 volts or more. But despite the capabilities of these smaller drills, most people prefer larger, heavy-duty options. They offer plenty of power for most household tasks, like hanging a shelf or tightening screws, and they weigh less, too. Lower-voltage drills, which we call general-use drills in our ratings, typically use about 12 volts. They’re typically heavier but also more capable of tackling difficult tasks like boring a large hole through studs or joists, or driving hundreds of screws on a single battery charge, which is what you’d want if you were building a deck. Higher-voltage drills, which we call heavy-duty in our ratings, have 18 to 20 volts of power or more. The voltage of your drill dictates the size of the job it can tackle. You can adjust the voltage to match the project you’re working on, and save money by buying bare tools to complete your set.” “So you can use the same batteries for your drill, chainsaw, and string trimmer. “A more recent trend we’re seeing is interchangeable batteries that work among a brand’s entire suite of power tools,” says Courtney Pennicooke, CR’s market analyst for cordless drills. And the changes aren’t unique to cordless drills they’ve occurred across many of the power tools we test. These improvements in cordless drills come thanks to advancements in lithium-ion battery technology and the introduction of brushless motors, which are more powerful despite requiring less energy. In the past decade, cordless drills have become more powerful, lighter, and energy-efficient, making corded drills practically obsolete. In fact, we would argue that it’s the single most important item in your toolbox. and is waterproof up to class 4–5 Test Report No.: A2210085110101C.Whether you’re hanging a shelf, installing a ceiling fan, or building a deck, a cordless drill is a must. * The water-repellent fabric test was conducted by Centre Testing International Co., Ltd. * Two extension rod designs are available and will be shipped randomly. The screwdriver bit test report was issued by the National Light Industry Tool Hardware Quality Supervision & Testing Station, Shanghai. *The battery test report was issued by Precise Testing & Certification (Guangdong) Co., Ltd. *The environmental reliability test report was issued by Intertek Shenzhen Ltd. *The EMC test report was issued by EMTEK (Shenzhen) Co., Ltd. *The whole unit ROHS test report was issued by EMTEK (Dongguan) Technology Co., Ltd. in Foshan Test Report No.: WTF21F3015226G. *The whole unit compliance test report was issued by Waltek Services Test Group Ltd. In M mode, the tail torque is adjusted to 30 and a 40mm-deep hole is drilled into a white pine board with a 7mm wood bit. *Wooden board drilling test method: With the device fully charged, the gearbox is adjusted to the high-speed setting (drilling mode). In M mode, the tail torque is adjusted to 30 and a hole is drilled into a 6mm-thick steel plate with a 6mm twist drill. ![]() *Steel plate drilling test method: With the device fully charged, the gearbox is adjusted to the high-speed setting (drilling mode). In manual "M" mode, the tail torque is adjusted to 10 and an M4 x 25mm self-tapping screw is screwed into the pine board until the battery runs out. * Screwing test method: With the device fully charged, the gearbox is adjusted to low speed (screwing mode). Speed test method: The fully charged device is run for 2 minutes at no load and the no-load speed is then tested with a speed tester. ![]() * No-load speed tolerance is approximately 10%. A torque tester is then used to test the locked-rotor torque at level 30. Torque test method: With the battery fully charged, the function selection button is pushed to enter screwing mode. * The maximum torque error is ±5Nm due to the measurement device used. ![]()
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