How to properly twist screws with a screwdriver. Blackpits are needed

How to use a screwdriver: detailed instructions for beginner masters

Today screwdrivers produce different firms. The most popular brands include Metabo (Metabo), Bosch, Devolt, Interskol. Such devices can be used in various fields of activity. At home, in construction, and assembly of furniture. The device helps to drill, tighten or unscrew the mounts, perform the thread.

All devices include the following elements:

Answering the question of how a screwdriver works, you need to familiarize yourself with its elements. Inside the device are an electric engine, clutch, gearbox. The tool also includes the capacitor and the board.

Varieties for its intended purpose

The option of application is determined by the shape of the working part of the nozzle. According to this principle, they are classified for the following types:

• For bolts and nuts;
• With anti.Vandal slot;
• With a design type “fork”;
• Spring and magnetic;
• For drywall;
• For professional use.

First option allows you to tighten or unscrew the bolts with nuts. Differ in a non.Standard shape of the working part, which, unlike other samples, is not convex, but has a hole. The pluses of such bit include a wide dimensional ruler.

Option of anti.Vandal slots is also called “snake eye”, Since the shape of their tip is adapted to the fork key. Models with the design “fork” are a variety of the previous type of bit. Outwardly similar to the flat version of the head, but have a slot in the middle. They are made of high.Quality steel, therefore, durability, strength are attributed to the advantages.

Spring fixer provides a reliable fastening of the nozzle in the adapter. And magnetic tips. Good clutch with the notch of fasteners, exclude the slide of the head. Such options guarantee a comfortable screwing of screws, screws in hard.To.Reach places, on the ceiling coating. The presence of a flexible spring allows you to tighten the fasteners at an angle exceeding 90 degrees.

Nozzles for drywall differ in the presence of a limiter, which excludes damage to the material during installation. Experts recommend avoiding strong pressure when screwing screws, since drywall sheets are very fragile.

Professional bits characterized by reliability, high strength and long period of use. Made of high.Quality metal, covered with a special protective coating. They are chosen to tighten a large number of fasteners. If you fix such a bat more than 400 screws, then its replacement will not be required.

There is a torsion bat for shock screwdrivers in a set of professional samples. In appearance, it is distinguished by a narrow area between the shank and the slot. There is also a flexible insert in the form of a spring operating on twisting. This feature allows you to screw self.Spinning fasteners into solid material (for example, drown a self.Tapping screw with a hat in metal).

Battery charging procedure

It is necessary to insert the battery into the device, while observing the polarity (the corresponding signs “” and “-” are affixed both on the battery and on the device), t.E. Plus combined with a plus, and minus. With a minus.

Luminous red diode on the device panel shows that the charging process is going on. This procedure lasts from 3 to 5 hours.

Screwing and twisting fasteners

Instructions for using the device are simple:

• The tip of the nozzle is inserted into a screw of self.Tapping screw or screw, turn on the device.
• To increase or decrease the speed of twisting, you should enhance or loosen the pressure on the start button.
• When the self.Tapping screw is twisted, the power restriction mechanism will automatically work, after which the work will stop.
• To unscrew the screw, the nozzle is placed in a slot, after installing the direction of direction of rotation of the nozzle in the opposite direction.

Screwing and twisting fasteners

Instructions for using the device are simple:

• The tip of the nozzle is inserted into a screw of self.Tapping screw or screw, turn on the device.
• To increase or decrease the speed of twisting, you should enhance or loosen the pressure on the start button.
• When the self.Tapping screw is twisted, the power restriction mechanism will automatically work, after which the work will stop.
• To unscrew the screw, the nozzle is placed in a slot, after installing the direction of direction of rotation of the nozzle in the opposite direction.

How to use a battery

The power supply of battery models is Nickel-Kadmieva (Ni-CD) or Lithuanian (Li-Ion) battery. To understand how to work with a screwdriver with a first type of battery, you need to know the pros and cons of the latter.

The advantages include a low price, a large number of charge-discharge cycles, and the possibility of operation at low temperatures. Disadvantages release a loss of 8-10% of the container during storage, the “memory effect”. With each charging not a completely discharged power source, its capacity will gradually decrease. If the battery does not operate for a long time, then it will be ready to work after 5 charge-discharge cycles.

Lithium-ion samples attract the lack of “memory effect”. They can be charged with any degree of discharge. The advantages include low weight, low level of self.Discharge (up to 5% per month), charging speed. The main disadvantages highlight a high price and a quick discharge at a temperature below 0 degrees. Store such batteries with half a charge level.

How to use a drill-spacer on the battery, described in detail in the instructions for the operation of the unit. Even the most expensive models can work on one charge no more than 2 hours, so many manufacturers are equipped with a tool with a spare power source.

The battery is charged using a conventional or pulse charger. The rate of replenishment of the container in the first case is 2-6 hours, in the second-not more than 1.5 hours. Some models have fast charging. 30 minutes. When connected by the battery to the charger, you need to control the correctness of combination of polarity on each subject. The glow of the red LED indicates the beginning of the charge process, the ending of the green.

Types of screws

Self-tapping screws with EPDM laying are different: on wood and metal. In our case, we need a tree, since a metal tile or corrugated board will have to be screwed precisely to a wooden basis.

How to distinguish a wood screw from a metal screw for metal, if both of the EPDM laying? There are several criteria:

• Thread. The Self.Tapping on the tree of the thread is more rare. The tree is more loose than metal, which means that such fasteners will hold better.
• The size. Wood screws longer. As a rule, to attach sheets to a wooden crate, self.Tapping screws with a diameter of 4.8 mm and a length of 28 mm or 35 mm are used. For attaching premature elements. Screws with the same diameter, but 50 or 70 mm long. For comparison: metal screws with a diameter of 4.8 mm differ in a length of 16 and 19 mm, and with a diameter of 5.5 mm. From 25 to 35 mm and 50 mm.

Набор отверток HOTO 24в1 и 28в1

Wood self.Tapping screw

Self.Cut through metal

To choose a screw for the desired length, measure the thickness of all fastened structures and add 3 mm. At the same time, it is worth remembering that the thickness of the EPDM tab is 3-4 mm and is included in the length of the fasteners. Therefore, the length of the screw is 4.8×28 not 28 mm, but 25 mm.

Standard self-tapping screws without EPDM laying are better not to use-they do not guarantee that water will not fall under the roof.

We twist the screws correctly: 6 tips that will simplify this lesson

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Self.Tapping screws is a type of fasteners, the main feature of which is the ability to be wrapped in material without preliminary drilling. Despite the general simplicity and ingenuousness of the structure, there are many important subtleties that should be taken into account when handling them. We will analyze the most important and most often practiced.

How to choose the right screw for a screwdriver

There are two types of cross bits: pH. Standard with 4 slots and PZ. Modified with 8 slots. The latter are good because the nozzle does not allow the nozzle to break off from the mark during work. When choosing a nozzle, you should also take into account the size indicated directly on the product. Bits are 1, 2 and 3 sizes. Correctly selected bit guarantees reliable clutch.

How to tighten long self.Tapping screw into solid material

In this case, it is recommended to make preliminary drilling, as well as lubricate the self.Tapping screw with paraffin or at least with simple soap. Otherwise there is a high risk of breaking metiz or breaking its slot.

How to screw a screw into a thin block correctly

The only way to avoid the crack of the thin bar when screwing the screw is to do preliminary drilling. It is worth considering that most often a crack appears when trying to “drown” a self.Tapping screw, which means that you should zenate a wider drill.

How to work with small self.Tapping screws correctly

When working with small meters, it is recommended to use a magnetized bat. If this is not at hand or you can’t do such a bit with your own hands, you can use the usual painting tape to fix the screws, consultants advise Novate.Ru.

How to unscrew a self.Tapped screw

You can do this in several ways. Firstly, you can use a special nozzle extractor. Secondly, you can put soft material between the screw and the bat, for example rubber. Thirdly, you can solder the bit with a soldering iron with a tin, if you can’t get it any other way.

How to unscrew a self.Tapping screw with a broken head

In order to extract a self.Tapping screw with a damaged or completely broken head, you need to use a tubular drill for ceramics.

I would like to adopt even more useful tips? Then read about 6 tricks and tricks that will make life easier for any driver on the road.