Types of screwdrivers: Marking screwdrivers

Any prudent host or hostess in the house there is always a certain basic set of universal tools, which often will be present hammer, pliers and a pair of screwdrivers. And if the first two items often everything is clear, you choose quality and truly universal screwdriver is not so simple. The modern market offers the consumer a great number of varieties of this tool, which further complicates the choice. In this article we will see exactly the most common types of screwdrivers and tell you about the features of each.

Types of screwdrivers: a review

Classical screwdriver comprises a handle manufactured from various materials (wood, plastic and steel, and to dielectrics), the rod and tip, which is sometimes called slot. Depending on the type, material and shape of these three basic elements, screwdrivers and differ from each other.

The most popular and widely used both at home and in professional activities include metalwork screwdriver with straight or cross-shaped tip.

Through direct or cruciform shaped recess which is such a tool to unscrew the common types of fasteners (screws, tapping screws and the like. D.).

Reference. Using a standard screwdriver to unscrew the fastener Phillips slotted unlikely to succeed, but if fixing slot is cruciform, and screwdriver tip - right, such a screw still can unscrew.

Very popular in the home and the so-called resettable screwdriver. Its core can be easily removed from the handle by hand, while on the opposite ends of the rod are different types of slots, making this tool is much more versatile. Some models may have perestavnye from 4 tip included, which further enhances their functions, and many of them do have a set of interchangeable bits for any slots.

Precise screwdriver useful for those who often work with small details and mechanisms. Very often, such a tool can be seen in the hands of the masters of repair of mobile equipment (smartphones, tablets, and so on. D.).

The two-component model got its name from the use of polypropylene and rubber in the manufacture of the handle. Such products usually have excellent ergonomic qualities. The material from which is made leather, non-slip even in wet hands, and magnetic coating of the tip is designed to prevent the screws inside-fall and be lost.

Masters of the clock usually use special watch screwdriver. The main difference - thin (less than 1 mm) lugs. Working with them is often necessary under the magnifying glass. Most of these products are sold sets, but you can find some instances of a specific size slot.

Continuing to talk about the professional tool, not to mention the so-called modernized kinds of screwdrivers, which are used more often experts in a particular profession. One of the representatives of this species are the dielectric models designed for work on electrical networks. This protects the tool when working on the electrical shock, even when the network is under stress.

Reference. Models of the dielectric often equipped with a test indicator. It can be used to determine the approximate location of the wiring buried in a wall surface, and sometimes - and determine the voltage level in this wiring.

With percussion screwdriver can be "drowned" in the bolt screw-coating without additional efforts on the part: they are designed to produce amplified pulse directed at the slot. With the help of a screwdriver is very convenient spin rusted fasteners.

Comfortable enough in the long hours of work (but expensive) are considered to be reversible screwdriver. They are provided with a so-called ratchet, which allows using this tool assembly and disassembly of fixture without taking your hands off the handle, simply making a return movement brush.

The principle of operation of such a mechanism reminiscent of the ratchet, which is often used by mechanics to loosen bolts. Most often reversible models have several interchangeable bits for different types of fasteners.

Cordless screwdriver on the principle of action and appearance more like screwdrivers, but they still endure in a separate category. Setting screwing force transmitted to the rod, allows the master to "align" the effort that will have all enshrined design elements on its frame. Very often, these models are used in the assembly of furniture and other structural products.

Particularly noteworthy telescopic model, in which the control rod length. Using this tool, you can twist the mounting even in tight spaces.

Very often, in the case that the right to screw at a right angle could not be reached, whatever the length of the bar, and then come to the aid of a screwdriver with flexible shaft. Their rod is made of a bendable material and can change the bend angle to certain values, allowing to unscrew even the "hard" screw or screw.

marking screwdrivers

Many screwdrivers you can find the alphanumeric designations that determine the purpose of the instrument. In order to fully understand the basic types of marking screwdrivers, we suggest you familiarize yourself with this table indicating the types of tips.

Labeled products and depending on the diameter and length of the rod, from 0 to 4, with a minimum value of diameter of 4 mm (for the number 0) and a maximum - 10 mm (for the number 4). The "nulevku" is better suited for screws, while the outer thread diameter less than 2 mm as "four" better cope with fastenings with outer thread diameter of 7 mm or more.

Furthermore, the marking can provide information about the manufacture of the rod material. One of the most popular materials for today is considered rods screwdrivers Chrome vanadium.