Pneumatic drills, also known as air powered drills, are mechanical drills that run on compressed air. Instead of using a battery, they require a hose connected to an air compressor.
They perform the same functions as an electric cordless drill driver, but they weigh less and perform without the use of electricity, making them favored by plumbers and construction workers. They are often used to drill holes in rock and construction.
Compared to electric drills, pneumatic drills cost less to operate and maintain, and they have a more ergonomic design. They are more versatile and can be used in more situations than electric drills. Many have throttles for variable speeds, which makes it easy to start holes.
The drill bit is the part that is attached to the drill and spins around to bore the hole. The shank is the part of the drill bit that fits into the drill. It is important to choose a bit with the right size and shape for your project. A round shank better centers the bit, while a hex shank with a flat surface grips the bit more securely. When choosing your drill bit, select the same size bit as the hole you want to make. If you are working with soft wood, choose a drill bit 1/64 in smaller than the hole size.
Chuck sizes come in ¼ inch, 3/8 in, and ½ inch, with 3/8 in being the most common. A drill with a bigger size can tackle more heavy-duty projects. Before you buy your pneumatic drill, figure out the size you will need for your project. Ensure that the size of the chuck matches the size of the bit you are using.
Drill presses are used to drill or enlarge a hole in wood, metal, or plastic. They are commonly used for woodworking. They can perform other functions besides drilling, including reaming, countersinking, counterboring, and tapping. A magnetic drill press uses a magnet base to secure metallic materials. Just like with other power drills, magnetic drill presses come in a variety of types, including electric and pneumatic.
The main part of the drill press is the spindle. If you want to drill a hole deeper than your spindle allows, you can change the relative position of the spindle and the worktable or use a longer drill bit.