A drill is a tool that uses rotary or a chipping movement to make a hole with using a drill bit, a driver fasten screws bolts and other fasteners. Hand drill has a cranking handle that can spin the pinion on the main shaft. The drill bit needs to be selected to make a hole of an exact size. No matter what the power level is, it spins clockwise and counterclockwise. Some drill driver has a clutch that lets you mechanically set the power it transmits. Driving screws use a drill driver for basic hole-drilling on plastic, wood, and metal surface. Some electric drilling rigs also have a hammering function. The speed, power, and size of drill bits are varied.
Core drills
A core drill is a kind of drill on steroids. It is a large motor, sometimes will be fixed on a large frame to support and maintain stability. It is usually composed of motor, handle, and drill bit. Made of metal, the drill bit is usually coated with diamond or cemented carbide. At the same time, it allows the cylindrical core drill to clamp into the masonry material and make a hole. These cylindrical drill bits will form a core, just need to remove instead of grinding out the entire hole. All core drill does is drop and rotate the drill bit without hammering chipping or driving applications turn to a core drill when you need to make a large diameter hole in concrete powered.
Drywall Screwdriver
Drywall screwdriver is another unconventional drilling tool. These are purely for driving and fastening. With its name says, all of this is a drywall screw gun that can help you quickly install the drywall. A special drill bit is required to use to release the drywall screw, so as not to damage the paper skin of drywall. They usually spin at a higher speed to fasten the screws quickly and sheetrock professional models of these tools usually have collated magazines which allows you to automatically feed the screws while you work, this can speeds up greatly on work.
Hammer drills
A hammer drill as known as hammer drill driver has the same basic design as a drill driver, but it has the hammering function as an additional function. This technology can drives the drill bit forward at a very fast speed that can be drilled into masonry to help shred concrete or other masonry materials. Hammer drill is suitable for use in light masonry, especially drilling holes in bricks, concrete, and mortar. In addition to being able to use it as drilling driving on plastic, wood, and metal.
Impact Drivers
The impact driver has a rotating hammer and anvil inside. When it rotates, the hammer will strike the anvil violently, to achieve a greater turning force than the standard drilling tool. Currently, many drill bits are impact-ready with quarter-inch hex shanks that allow people to drill with an impact driver. It is lighter and smaller than standard drill drivers. With its quick-change bit and high-torque function, it mainly used for driving screws and tightening nuts. It is not as smooth as a drill driver at the same time it much louder when working. Impact drivers are the champions of screwdrivers in the construction industry. Drive the screw faster than a standard drill driver. By keeping the drill bits in the fastener, they will not twist out easily or strip the tip of the driver bay.
Rotary Hammer
Rotary hammer or combination hammer, they range from slightly larger to much larger than a hammer drill. These tools use a stronger hammering mechanism to provide greater impact power than a hammer drill. They can also drill faster and usually have less vibration. Rotary hammer typically has two modes chipping and rotary hammering, some also include rotation. It is suitable for drilling holes or breaking up hardened concrete, asphalt, stone bricks, or other masonry. It is very durable and the best choice for professionals used.
Powered Screwdriver
Powered screwdriver has either an inline design or a pistol grip and it usually has lower power and torque than a standard drill driver. It generally operates under electric power. Powered screwdriver is best suited for small and even delicate fasteners that do not require the torque a standard drill. There are two typical types of a powered screwdriver which are a cordless screwdriver and inclined cordless screwdriver.
Cordless screwdriver: Similar to a standard cordless drill, its pistol grip configuration, and battery are located at the bottom of the handle.
Inclined cordless screwdriver: Similar to a standard screwdriver, the large handle can accommodate a standard disposable battery or rechargeable battery or dedicated rechargeable battery pack.
Right-Angle Drill
A right-angle drill is perfectly used for drilling and driving in narrow and other confined spaces where conventional drilling is unable to be applied. Therefore, its size is usually small and lightweight. It has a long handle and smaller head, the head can be equipped at a 90-degree angle which suitable for a small project that does not require large amounts of electricity. This kind of drill is easy to use and also require higher accuracy.
From the above, we can know that there are many types of hand drills in the market. Each has its function and ideal application. Regardless of any work or project, they can choose the right-hand drill according to different materials to be drilled to achieve the best results.