Crown Metal: species, size, methods of application

Crown Metal gradually take its rightful place among the domestic tool. The presence of the nozzle, in many cases, thus saving time and money on pay and waiting for an invited expert. Perform maintenance hole to lock in a metal door or drill round "niche" in the Tuned favorite car is quite feasible task for everyone.

Ring crown metal: technical features and method of use

Metal is the material, which has recently been greatly expanded in scope. More recently, he was associated with frames, beams, rigid overall structures. Today, metal shelves, tables, decorative elements adorn the interiors of many homes.

Cut the pipe, angle, sheet easy with the help of the blade metal. In order to connect the workpiece into the structure, often necessary to form a hole, which is done in a metal annular cutter - crown. crown design consists of the following elements:

• metal cup;
• a cutting edge;
• shank.

Cutting. part has the form of teeth, which may be a continuation of the metal. -Cylinder housing or be soldered fragments.

The crown is attached to the power tool via the shank, which has a triangular or hexagonal shape (depending on the diameter size), which provides a firm connection with torque.

Ring. metal saw distinguished by two criteria:

• to size;
• on the specifics of the material from which they are. made.

Range. dimensional quantities diameters quite broad - from 14 to 152 mm. Concerning. characteristics of the material, you should know that the release pattern of hardened and. alloy steel, the latter being characterized by a particular strength.

Carbide bits for metal: good quality and reasonable price

Despite the rather narrow in scope crowns, well thought-out and clear. classify them almost impossible to find. Marking products, manufacturers have resorted to self-defined differences. And names. may use different "drill crown", "crown", "I saw the ring," "cutter ring." And it's not the whole list.

The division into types based on features of the manufacture of the material even more intricate. The term "crown on metal 20mm stainless steel" is true, but absolutely no idea about the product does not. All crown attachment for metal made of steel. Any steel is additive, ie it is alloyed, components of the complement, enhance or change its physical characteristics.

The most common formulation - "the crown of high speed steel." Such a high-alloy steel refers to the species, its composition is required to include the following materials: Tungsten - 19% vanadium - 2.6% molybdenum, - up to 3%, Cr 3.5-4.4%. Such connection makes cutter solid components, long an opposing wear red hardness, i.e. not subjected to deformation at temperatures up to 600 ° C.

Carbide bits of the same material are widely used, their. used both at home and in large-scale construction.

Products are of good quality and reasonable price. Middle sized option - for metal crown 50 mm - will cost (depending on the manufacturer) from 600 to 1000 rubles.

Bimetallic for metal crowns: particular material and method of application

Bimetallic - made of two kinds of metal. In the case of metallic crowns this connection speed steel and cobalt, the content of which should be at least 8%. This combined material acquires qualities needed for effective cutting various types of metal, including stainless steel, aluminum, copper, brass and the like. D.

The diameter of the saw attachment data may be very different, but most of the tools are made in a similar fashion medium and large sizes (from 20 to 152 mm). Prices for these products vary, depending on the size and manufacturer. Nozzle 20 mm will cost 150-250 rubles crown on metal 35mm - 350-500 rubles, large size versions of 127 mm - 900-1300 rubles.

The key. technical and operational characteristics of bimetallic crowns should be. include:

• high quality material, allowing the metal to drill any hardness;
• presence of lateral openings allowing waste removal and cooling of the cutting edge;
• shape and arrangement of teeth feature contributing to the implementation of neat cuts without burrs;
• minimal (almost no perceptible) vibration during operation;
• the presence of the shank, enabling to attach the nozzle to the power tool of various capacities.

Useful advice!Bimetallic crowns often used to make holes in. solid and thick metal. When choosing tips be sure to pay. attention to its compliance with the power tool, which is planned. use

Diamond crown on. metal for. drilling stone, concrete, ceramics

The first diamond drill bits have a steel body with inserted by cutting. the surface of the stones of natural origin. It was very effective. tool, but it cost a lot of money. Modern industry produces. artificial diamonds, which are not inferior to the performance characteristics. natural, so actively used for performing drilling and cutting. different materials.

On the edge having the shape of teeth of two kinds of diamond secured: and scoring. volume. Just cutting is performed last. Scoring located on. inner and upper part of the mechanical parts, they are used to protect teeth from. wear.

Diamond drill bits are relatively expensive tool. For example, 300 rubles will cost the crown 35 mm. Metal such nozzle is not necessary to operate, it is for hard stone: concrete, granite, marble and so on.. If a concrete or ceramic are metal inserts, such an embodiment will crown saws suitable tool. Crown confidently held friable and easily cut the layers encountered in the way of the metallic elements, keeping the work surface.

Useful advice!Diamond deposition on the crowns may be different. Therefore, when choosing. nozzle for drilling stone with metal inserts to be correct. estimate the thickness of the past and choose a ring mill with a suitable cutting. end

As needed. choose a drill crowns on. metal

A very important point, ensuring the normal operation of the annular cutter is appropriate nozzle Use the power. Most often in. As the rotation device uses a drill. They have a variety. specifications. Here it is necessary to pay attention to the following. indicators:

1. Power drill bit depends on the diameter: the larger it is, the stronger the required power tool. For example, for metal crowns 25 mm is suitable drill 600 watts.
2. The ability to adjust the speed. The drill will be used not only for drilling, so it is important to set the desired spindle speed. Crowns small volume require a significant number of revolutions, for larger sized diameter indicators speed must be reduced.
3. Compliance forms the crown shank mind cartridge. The cartridges can be of two types: key and quick-action. The first requires a special key, by which to fix nozzle (This variant is considered more reliable.) The second is much simpler - one can fix the nozzle hand.

Metal crown 22 mm does not require changing the spindle speed during operation. It may increase the load on the cutting edge due to the passage of a solid layer of material. To operate under such conditions (drilling layers of different densities) can be a convenient option drill with the function of maintaining frequency under load (constant electronics). Power tool adjust speed according to the specific conditions.

Financial. benefits and opportunities: sets metal crowns

If there was a question of choice bits for making holes in the metal, so much in the house is done by hand. On what is necessary to stop: to buy a nozzle for a specific single target or buy a set, looking. in the future and preventing the need? When uncharacteristic individual case. worth staying in a separate article. Moreover, it is useful to weigh and. calculate at what quality is worth paying attention to.

Even for a layman seeking to have a certain arsenal of household tools, better to choose a set of bits for metal to drill. Advantages of the acquisition of this kit:

• to fulfill holes of different diameters, changing only the annular cutting portion;
• no need to spend time searching for cutters of different diameters;
• Savings: a set of crowns is much cheaper than buying a separate nozzle;
• hard plastic case, in which the elements are stacked kits provide a convenient and secure storage tool.

If we try to assess the financial benefits from the acquisition of the set, then the calculation will be approximately as follows: the price crowns on metal 40mm "Anchor" - 270 rubles, a set of 5 of these mills this manufacturer has a cost of 760 rubles. The price of one nozzle (average) is almost two times less.

Kits for metal crowns may consist of 5, 8, 10, 12 or 13 units.

Useful advice!When buying a set of bits for metal is necessary to pay. attention to the presence in the complete center drill. His absence did not. will set the nozzle on the surface of the material exactly in the center.

Universal. mobile installation: drill. lathe on the magnet

Drilling machine for the magnet devices relates to the fact that during. simplicity of construction have a high efficiency and profitability. By. Compared with a stationary drilling installation it has a number of advantages:

• It has no restrictions on the placement of the holes;
• lightweight, mobile;
• inexpensive.

On. stationary machines available to make the holes of small size only, so. the distance between the crown and the working surface does not allow. place large blank. The magnetic device can be mounted on any. metal plane by means of a special sole.

Such machines have different functionality. Using metal crowns 32 mm (and smaller nozzle diameters) can perform a hole in netolstym material. Circular cutter 50 to 150 mm reinforced structure used for thicker metallic material.

Related article:

The crown of the tree: the sizes and types of baits, particularly the use of

The crown of the tree. Structure and working principle. Variety of hole saws. Features of operation of nozzles with different diameters. Crowns Bosh, "Bison", "Encore."

Magnetic. part of the machine is quite powerful, it reaches 26 kN. This allows you to install. tools not only horizontally but also obliquely, even vertically. If. the surface is not flat, the magnetic field does not reach the necessary. values, additional locks are used to secure the machine.

Magnetic drilling installation often used for making holes in the large-sized structures, however, metal crown 50 mm or more are the most common for these nozzles devices.

Proven reliable tool: crowns, metal Bosch

One of the most popular are crowns on metal Bosch. Most products manufactured by this company are bimetallic, that is made of two types of metal: a body made of high speed steel and the teeth are soldered and have a somewhat different composition, which comprises cobalt.

Diameter. baits very different, but the step is equal to one inch: the minimum size - 9/16, then. is 14 mm maximum - 6, which corresponds to 152 mm. Some sizes. Bosch line of crowns and can not find.

Planting in. Bosch standard models - is 1/2 or 5/8, so that the bits fit together. with many kinds of power tools. As an adapter is used. Power Change adapter. Replacing the cutter ring is made simple and short-lived, for that should be given to the outer ring - adapter will push the crown.

It is very important to maintain the required number of revolutions. Nozzle 29 mm requires a frequency of 400 rev / min and the metal crown 40 mm - 200 already. These requirements significantly prolong the service life of nozzles.

Concerning. price annular cutters Bosch metal, it should be referred to a moderate level. The crown is the average diameter (38 mm) will cost about 800 rubles. Though. separate manufacturing cost may exceed this figure. It offers. this company and sets of hole saws. Set of 11 bimetallic products worth. an average of 8,000 rubles.

Crowns on metal "Zubr": application features, prices

Crowns on metal "Zubr" - products domestically. production. Although it should be noted that much of it is made. in China. Analyzing the responses in social networks, we can conclude that approximately 30% users have complaints about the quality of nozzles. Yet most estimates. tool as a reliable and fully justifies the claimed performance by the consumer. opportunities.

Crowns are basically bimetallic, with an undulating arrangement of teeth. The depth of the standard nozzles - up to 40 mm. Size range of diameters - 14-152. mm. The crowns of the manufacturer have lateral openings for exhaust. chip, which makes drilling process more comfortable. Holes after. crowns "Zubr" obtained neat, with a smooth inner surface and. smooth outer edges.

Nozzles are inexpensive, the smallest (14 mm) will cost 150 rubles. Price bits for metal 110 mm to an average of 800 rubles.

Important!Source data bits is largely dependent on the method of operation. From the experience of the application (information taken from reviews of users), it follows that. annular cutters "Bison" it is not necessary to cut metal thickness greater than 2 mm or the same. necessary to apply an additional water cooling.

Quality. Chinese version: crowns on. metal Fit

Fit the crown. made in China. During the Canadian technology used production. In the Russian market, the company has many large branches. Like so many others. producers of the like product, the bulk of the crown - bimetallic. products.

Circular cutter Fit can be attributed to the average price segment, which makes them quite popular. Metal crown 25 mm would cost 400 rubles, 30 mm - 500 rubles, 35 mm - 600 rubles.

Bits of small and medium sizes have a triangular shank, each model is equipped with a centering drill. A distinctive feature of the crowns producer can assume the absence of an external protective coating. This does not in any way be regarded as a disadvantage. Chrome vanadium body does not need this supplement. Hardly any damage to the coating, while not affect the result of the instrument, but helps to preserve the aesthetics of the product. As a result, the process of working the crown becomes more comfortable.

It should be noted that the metal thickness of 2 mm is not a limit for data nozzles. For example, a metal crown 60 mm Fit possible without damage to the cutting edge and without additional cooling drill sheet 3 mm. Shank nozzles at a 32 mm hexagon, which allows to fix solidly the cutter housing to the power tool.

Crowns on metal "Encore": sets and individual nozzles

"Anchor" - domestic trade and manufacturing company, which employs tens of thousands of names of various products, including crowns and includes metal. It is worth noting that among the tips offered by this manufacturer have both bimetallic model and simpler - made of hard material.

This option allows customers to find a suitable option in accordance with the financial possibilities. Carbide metal crown 22 mm will cost a little more than 100 rubles.

Dimensional parameters "Anchor" baits can be attributed to the standard: depth - 40 mm, the diameter - of 14 to 152 mm. Crowns may go as complete with the tool holder and the centering drill, and separately - a main body with a cutting edge. The latter option is useful for those who already have an annular cutters of different sizes. The product is also acceptable for those cases where there is a need to replace the crown due to a considerable deterioration of the cutting edge.

Useful advice! For more comfortable use not buy "Encore" with crown. the ejection spring, which does not allow drill fragment. stuck in the nozzle body.

Available options are also sets bits of the manufacturer. For example, a set of nozzles 9 can be purchased for 3250 rubles. The minimum diameter of crowns 19 mm maximum - 64 mm. In a set. It is key, two adapters and center drill. Small size. Carrying Case makes a convenient tool storage.

Crown Metal: Tips for proper use

Almost all the new tool has an attractive appearance. On online stores pages, you can find a complete description of the goods, sometimes even supported by positive feedback from the buyers. Not to give up the acquisition, it is necessary to take seriously the study of the capabilities of the instrument. Assess-bit drill for metal can in such sequence.

1. You need to make the right choice, for it is worth attention. read the labeling information. On the package must be indicated. dimensional figures, the country of origin (which to some extent said. the quality of the goods), the manufacturing material, features and accessories. adaptations. If marking is not giving complete information of the annular cutter, there is reason to doubt as a tool.
2. During use, should not be neglected. manufacturers' recommendations. Application of the crown not intended to lead. Damage to the tool.
3. If there is no center drill set, it must acquire, subject to certain requirements. For example, a drill. tips for drills must be Phillips sharpening, or instantly and accurately. not be able to perform centering.
4. On the need to control the number. revolutions in the article mentioned more than once. It should be stressed that this condition. is perhaps the most important to increase the resources for metal crowns.

With the proper selection and use of crowns hole in the metal can be performed in seconds. The tool is useful for a variety of household and industrial purposes. Compliance with the technical requirements can extend the service life for a long time. Conversely, one injudicious use can provoke defects that will crown unfit for use.