Several manufacturers produce cordless drills and other cordless power tools including Makita, Milwaukee, DeWalt and Craftsman. At time of publication, Makita offers an extensive line of cordless power tools including drill drivers, jigsaws and impact wrenches. Makita cordless tool models operate with 18-, 14.4-, 7.2-volt lithium-ion batteries, 18-, 14.4-, 12-, 9.6-volt nickel cadmium or nickel-metal hydride batteries.
Almost all cordless drills and other cordless power tools can take the same blades, bits and attachments as similar corded or pneumatic power tools. Diamond-tipped, cobalt, tungsten carbide, silicon carbide, titanium and steel blades, bits and attachments are all available for cordless power tools. You should set attachments securely in place before undertaking any task with a cordless power tool.
Manufacturers employ several different types of rechargeable batteries for their cordless tools. Lithium-ion batteries and nickel-metal hydride batteries are designed to last for up to three years while nickel-cadmium batteries can last for up to five years. Nickel-metal hydride batteries lose up to 5 percent of their charge each day they are not in use. Nickel-cadmium batteries also begin to lose their charge even while not in use. You can store lithium-ion batteries for several months before they even begin self-discharging. Storing nickel-metal hydride batteries at lower temperatures slows the aging process.
You should use only the proper blade, bit or attachment for any given application involving cordless power tools. Cordless power tools may be much less noisy than corded or pneumatic power tools, but excessive exposure to any loud noises can damage hearing. Consumers should use ear protection while working with cordless power tools for extended periods of time. Using cordless drills, circular saws and other cordless power equipment on a work piece can create dust and airborne debris. Wearing protective goggles greatly decreases the risk of eye injury while operating cordless power tools.