What is a Winning Drill and How to Choose One?
Making even small cosmetic repairs, it is impossible to do without drilling walls or other surfaces. It may seem that there is nothing easier than making a hole of the required size. But in fact, even such a simple job has some nuances. First, you need to know the rules for working with a drill. Secondly, it is important to choose the right drill. Today, the most popular products are those with victorious tips. They are very easy to use, unpretentious, and most importantly, even an inexperienced person can work with them.
What it is?
Quite often, novice builders find themselves in a difficult situation. They know how to drill, they put a new drill in the chuck, and the hole they get is not up to standard. The reason for this problem is not a lack of working skills or a poor tool, but in the cutting element.
First of all, you need to get acquainted with the material from which the drill is made and determine the features of the working surface. An important rule of thumb for drilling is that the cutting element must be harder than the base to be machined.
Keep in mind that the correct sharpening of the drill is also an important feature of the drilling procedure. For the experiment, you can take a drill for metal and try to make a hole with it in the concrete base. In this operation, the cutting element will lose its effectiveness and may break.
If it is necessary to make a hole in a very hard surface, it is best to choose drills with a victorious tip. They can be distinguished from a conventional cutting element by the presence of a pobedit alloy on the tip, which has a high level of strength.
Do not forget that Technological progress does not stand still, and the classic model of winning drills, which was in wide demand in the recent past, has undergone modernization. Winning drills can now be used in a wide variety of materials, such as metal and concrete.
When doing an analysis of the merits of victorious tips, it is necessary to consider the base material. To understand what this is about, you need to go a little deeper into history. Winner is an alloy created in 1929. It contains cobalt and tungsten in a ratio of 10% to 90%. This connection covers the drill tip, increasing its efficiency several times. Thus, winder drills easily cope with creating holes in brick, cinder block and concrete.
Further, it is proposed to get acquainted with the main advantages that the winner has.
- The alloy is very durable, does not lend itself to deformation.
- Pobeditovy material can withstand strong shock loading. This is due to the fact that hammer drills are used in hammer drills with a hammer action principle.
- Today, obtaining a winning alloy is distinguished by minimal costs.
Victory drills were developed mainly for installation work and for creating holes of different sizes in certain structures.
However, modern variants have a wider range of functions. They can be used in various construction operations:
- drilling of irrigation ditches, involving the laying of communications;
- drilling holes for mounting anchors and other fasteners;
- dismantling of concrete structures to create window and door openings;
- a victorious drill is used to fix furniture and fittings;
- it can be used to work with fragile materials, such as ceramic tiles, glass;
- The winch drill easily handles stone substrates.
A beginner builder must remember: for effective work, you do not need to press on the perforator, in the chuck of which there is a drill with a victorious tip - the drill must have a free stroke.
Types and their designs
A distinctive feature of a victorious drill is that it does not need additional sharpening. Products exit the production conveyor with a tip angle appropriate for correct operation. They look like cutting elements familiar to everyone with additional surfacing on the tip.
The cutting part of a victorious drill has 2 shoulders of approximately the same width. Where they intersect is the center of the hole. It is impossible to see the difference in the width of the shoulders with the naked eye. This requires special measuring instruments. A completely different question if the width between the shoulders is visible without any gauges. In such a situation, it is not recommended to use a winder drill. The hole diameter will be much larger, the cutter will rotate like a hinge tip, and the cutter will break.
If suddenly the tip of a victorious drill is dull, it can be sharpened, but at the same time observe a few nuances.
- The sharpening angle depends on the surface to be machined. The more massive it is, the smaller the angle should be.
- Pobeditovy material does not perceive high temperature. When heated, the alloy may crack or separate from the base.
- If it was not possible to avoid overheating, it is strictly forbidden to immediately cool the drill. It is best to set the cutting element aside to allow it to cool naturally.
If the diameter of the winning drill is small, it will most likely fail very quickly. But this nuance has nothing to do with the experience of the master. In this case, it all depends on the design of the cutting product. This is why it is recommended that you purchase a few spare drills in advance.
Today, there are many varieties of cutting elements with a victorious soldering. They differ in brand, quality, efficiency and cost.
Depending on the shank, the winder drills are divided into 4 groups.
- Hexagonal. They are designed for quick installation. They can be of a regular shape or with a depression.
- Cylindrical. This type of drill is designed for installation in a conventional drill chuck.
- SDS. These products are suitable for most rotary hammers with unusual cartridge shapes.
- Triangular. They are held as firmly as possible in the chuck, do not turn and do not jump out.
In addition to the shank shape, winder drills are divided by diameter. The minimum dimension is 3 mm. They can be used for drilling into less dense substrates. For work on stone, brick, metal, concrete and foam concrete, larger drill sizes have been developed, for example, 6-8 mm.
For the hardest surfaces
The most popular are the victory drills designed for working with stone and brick. Many of them can be used at maximum operating conditions. The tip sharpening angle is 130 degrees. However, some manufacturers make it more complex in shape. They increase the angle or sharpen the centering part as much as possible.
If the impact mode of the drill is selected, the work surface is crushed like a chisel. And thanks to the special grooves of the drill, the sawn material is removed from the hole being created. However, removing the saw cut from the base is not the main purpose of the grooves. With their help, the drill deepens as efficiently as possible in the hole and does not get stuck during rotation.
Some manufacturers who develop victorious drills categorically prohibit their use in percussion mode. The reason for this is the peculiarity of the alloy and the sharpening angle. In most cases, products with a victorious tip are disposable. At least that's what their packaging says. But builders, who are often engaged in drilling, do not throw away the used products, but give them back for re-sharpening for subsequent use.
For porous concrete
Today, materials such as foam concrete, aerated concrete and sand-lime bricks are in great demand. All of them belong to the section of porous materials. A metal drill can be used to create small holes in such bases. However, it is best to choose standard winning items. In this case, you do not have to worry that the plaster layer will burst.
If it is necessary to make a hole with a size of 30–120 mm, it is best to use special soldered winder drills. Outwardly, they look like feather drills for wood, they pierce a regular block through. But, unfortunately, the strength of the alloy is much lower than that of the stone. To get rid of cut waste, spirals are present in the design of such products. For work, you will need a punch or drill, but without using the impact mode.
Aerated concrete drill bits can be used on finished substrates. It is desirable that the plaster layer does not have a reinforcing metal mesh.
For tiles, ceramics and glass
Today on sale you can find victory drills for working on glass, tiles, tiles and ceramics. Their distinguishing features are cone-shaped tips, round shanks and sizes. The diameter of the victorious drills for such a brittle material ranges from 3–12 mm.
Extremely rare, but nevertheless, the design of these types of drills is reinforced with victorious inserts and cutting edges... Thanks to these features, builders create precise holes with smooth edges.
However, when working with this type of drill, some nuances must be observed. To make a 20–94 mm hole, it is preferable to use circular cutters called ballerinas. Such designs have 2 victorious plates.
Most manufacturers recommend cooling the winder drill. In between drilling, it is enough to water them with cool water. This procedure allows you to increase the life and efficiency of the product.
Popular manufacturers
The modern construction market is replete with a variety of victorious drills. They differ in the size of the structure, and most importantly, the manufacturer. On the shelves you can find cutting elements of both European and domestic brands. The list of foreign companies engaged in the production of victorious drills includes well-known names such as Makita, Bosch, Metabo, Stayer, FIT.
Do not forget that the pricing policy for any tools entirely depends on the technology of their creation and efficiency. From the list of brands presented, Bosch is especially popular. Their products are distinguished by a 4-spiral design, so that waste is easily removed from the created hole.
Among domestic manufacturers, products of such brands are in great demand: "Interskol", "Zubr", "Enkor". Their victorious tipped drills are in the middle price range. They guarantee accurate drilling, but at the same time have a limited service life.
Do not forget that in the modern construction market you can find drills made in China. Branded products from China are of high quality and reliability, but at the same time they have a high price. If suddenly the seller offers to purchase a budget winning drill, it is highly likely that it is a fake and breaks down in the first minute of work.In order not to purchase a low-quality drill, you must carefully examine its design, make sure that the color of the product is uniform. If there is any difference between different parts of the cutter, it is most likely a fake.
Modern manufacturers, realizing how important and necessary a winning drill is, offer their customers sets, the price of which is much higher than individual cutting elements.
Selection recommendations
Today, on the windows of hardware stores, a wide variety of drills with victorious tips are presented, among which it remains to choose products that match a specific case.
First of all, buyers analyze the pricing policy of the cutting element. The cost of one product or a whole set depends on the manufacturer, his fame, the country of production and the seller himself, more precisely, his markup.
Usually, the high price is assigned to drills of European production, but they are worth it, and the guarantee is provided. Mid-range products are most often represented by lesser-known companies. Such cutting elements are characterized by low strength and do not always correspond to the characteristics.
Buyers try to bypass the most budget options, as they are sure of their low qualities.
According to many home improvement stores, Bosh drills are in high demand. This brand offers high quality, reliable tools that are ideal for working with a variety of substrates. Samples from Silver Percussion, Impact, Karat, Black Quartz, DeWalt are also considered popular.
And yet, the main thing when choosing a victorious drill is its purpose.
The following video explains what a winder drill is.
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