In modern conditions, an electric drill is one of the most popular tools capable of performing dozens of different functions with the help of auxiliary devices used as nozzles. But still, the main purpose of the drill is to drill holes in various surfaces. For this reason, manufacturers create new modifications to the tool, improving its basic functional qualities. When purchasing a drill in a store, you need to have an idea of the tasks that are designed for it. This will help to understand how to use a drill and choose the most suitable model among the endless variety of this type of tool.
Operating principle
An electric drill allows you to perform a drilling procedure quite simply. To do this, attach the drill to the marked surface and press the start button. In this case, the chuck holding the drill will begin to rotate by means of an electric motor. When the hole is ready, release the button and remove the drill from the hole. For screwing and unscrewing screws it is good to know how to use a mini-drill used as a screwdriver. On such models, convenient levers are installed to put the engine in reverse mode. This is very practical when working with fasteners.
In addition, on most modern drills there is a speed switch that allows you to drill different materials. A gearbox with several gears of different sizes is included in the design of such tools. Speed change is achieved by connecting the motor shaft to one of the gears using a switch. The only drawback of the network device is the inability to work without a power source. In such cases, you can remember how to use a hand drill or use a battery-powered model.
Operating modes
Most modern electric drill models are designed for two main operating modes. Moreover, the first mode (drilling) is considered standard, and the second mode (hammer drilling) is auxiliary. In normal mode, such a drill is capable of performing both locksmith and carpentry. And the hammer drilling mode is used, if necessary, to drill a hole in a concrete or stone surface. These are the main ways to use the drill for its intended purpose.
The mechanism that performs the impact during impact drilling consists of two ratchets. They are located coaxially. When switching to the hammer drilling mode, these elements interact in order to create the translational motion of the working shaft. For this mode, special drills with victorious tips are used. The impact of the mechanism is triggered by the force applied to the drill. It should be between 10 and 15 kilograms. Here's how to use the drill with the kick turned on.
Metal drilling
First of all, it is recommended to choose a drill designed for this type of work. Drills for metal differ in the grade of steel from which they are made, as well as the angle of sharpening. To work with cast iron, steel or stainless steel, only such drills can be suitable. Drilling in metal is performed at low speeds. This allows the drill to heat less and blunt more slowly.
If you know how to use the drill correctly, then as a result, spiral shaped chips should flow out of the hole. The metal drilling process will occur more efficiently if pressure is applied to the drill. Before the start of the process, a notch is applied at the place where the drill was set. This is necessary for better traction with metal.
Wood drilling
To work with wooden surfaces, you need to purchase drills designed specifically for this purpose.
After applying the marking, the drill is installed at the indicated point and, with a little effort, include increased revolutions. In the ideal case, the drill will smoothly immerse into the surface of the wood. Sometimes you have to make holes of considerable depth. In this case, the drill must be removed periodically by dropping chips. Otherwise, it can pinch. Similar rules explain how to use a drill when working with wood.
Concrete drilling
When working with concrete, it is recommended to use safety glasses to avoid small fragments in the eyes. For work, it is necessary to have special drills, at the base of which a victory tip is laid, which has high strength. Work with concrete is accompanied by abundant dust emission, which can be reduced by wetting the work surface with water. This input is necessary to understand how to use a percussion drill.
Drilling is performed when switching to shock mode, while tuning the tool to medium speed. In the process of drilling concrete, a force must be applied to the drill, however, the load must be transmitted smoothly. If you need to make a lot of holes in concrete, it is better to use a lightweight puncher. Drill does this job with great difficulty.
Brick
For drilling materials of this class, the drill is much better suited due to the lower hardness of the machined surface. When working, drills with victorious tips are also used, and protective glasses are put on the eyes. The tool is put into shock mode and set to medium speed.
Drilling is performed using the load on the drill. In this case, you can act more confidently. The surface of the brick is much softer than that of concrete, so drilling takes place with less effort. Drill, working in shock mode, can easily cope with such a task.