How to drill thick metal with a drill.

Drilling is a necessary operation if you need to get a hole in a metal product. Most often, there are several of the following reasons for drilling:

  • It is required to create a hole for cutting threads, zenketing, deployment or molting;
  • It is necessary to place electrical cables, fasteners in the holes, pass anchor bolts through them, etc. D.;
  • Department of blanks;
  • Weaken the destructive structures;
  • Depending on the diameter of the hole, it can be used even for laying explosives, for example, when extracting natural stone.

This list can be continued for a long time, but it can already be concluded that the operation of drilling is one of the simplest and at the same time rather necessary and common things.

How to get in the right place?

If you think a little about this question, then the answer should visit your head even without a hint. Well, it seems to me at least. But if you think reluctantly, then read.

How to Hand Sharpen a Twist Drill

This case will require a core. This is a durable steel tool that has a cylindrical shape and tip at the end.

We put the tip to the desired place of drilling and hit the roll on the other side with a hammer several times.

Now that you are fixed, put a drill to the irregularity surface and start drilling. The tip will not run away anywhere.

Features of drilling deep holes

Holes are considered deep if their size is more than five diameters of the drill. The peculiarity of the work here is the difficulties associated with cooling and removing the chips. The length of the cutting part of the tool should be greater than the depth of the hole. Otherwise, the body of the part will block the screw grooves along which the chips are removed, and the liquid for cooling and lubrication comes.

First, the hole is drilled with a hard short drill to a small depth. This operation is necessary to set the direction and centering of the main tool. After that, make a hole of the required length. As you move, it is necessary to extract metal shavings from time to time. For this purpose, use cooling liquid, hooks, magnets or a part.

How to drill a drill correctly and evenly

In the field of repair, the ability to drill properly is one of the basic. In addition to general rules, it is important to consider all the nuances when working with specific material: concrete, tiles, metal, etc.D. All issues related to drill will be covered in this article.

As already mentioned, the drill is the most common lesson for the repairman, and therefore it is important to immediately learn several basic rules related to this occupation.

  • Using suitable tools. There are many drills, each of which is intended for a certain kind of materials. Therefore, do not try to drill concrete drill on wood and vice versa. It is also important to consider the conditions in which the tool will be operated. For example, industrial drills cannot be used for repair in the interior (this is simply unsafe). It is important to take into account moisture resistance: for external work, IP34 class tools will need if the climate in this area is wet and IP32, if you have to work in good weather. Inside the room you can use IPX2/
  • Competent markup. Before starting any work, it is important to carefully and precisely mark the places of drilling with a marker. Under the marker you can still stick paper tape so that the drill does not slip through the material.
  • Selection of the required drilling rate. It all depends equally on both the material and the diameter of the blade. If we are talking about very thin drills (with a diameter of less than 3 mm), then you need to work at low speeds, less than four hundred per minute. For other drills, the following rule exists: the thinner the drill, the greater the drilling rate is required.
drill, thick, metal

In addition, it is important to ensure that the handle is securely attached to the shaft of a hand drill. You cannot also allow a skew of the drill.

How to drill metal

The first thing to start with is the selection of drills. They are distinguished by a sharp edge designed for a light entering the drill into the metal. Normal metal drills are good for not too hard metals such as copper or aluminum, however, for something more solid (for example, for stainless steel), you need to take products from titanium carbide or chromium-vanadium alloy.

Separately, we should talk about optimal speeds. Frequent error of novice masters is the use of too much revolutions. In fact, medium speeds are used for solid metals: for example, brass with a centimeter thickness will optimally drill at speeds in 2000-2500 revolutions.

There are several more points that need to be lit. So:

  • If you need to drill a thin iron plate, it must be fixed between two pieces of wood. This is done so that the sheet of metal does not break.
  • It is necessary to use lubricants from time to time, which provides cooling the drill and facilitates the drilling process.
  • If you need to make a hole in the pipe, then it must be securely fixed. In order for the pipe not flattened under the influence of a drill, a piece of solid tree should be placed inside.

If you are guided by these simple rules, then even a beginner will be able to qualitatively perform drilling.

How to perform wall drilling from concrete

It is most often necessary to drill walls in everyday life, because without this it is impossible to hang a shelf, locker, you can not install a cornice. Of course, it is better to use a punch or shock drill for this purpose. These tools are powerful enough to cope with such solid material as concrete or brick. However, if the wall thickness does not exceed 10-12 cm, then you can do with a regular drill. But do not take risks if there is only a low.Power tool at the disposal. When contacting concrete, it can simply break. If the drill is selected correctly, then the following tips will become useful:

  • Before starting work, you should make sure that pipes or other communications systems are not located at the drilling point.
  • Drill that are taken for such work should be made of solid metals or alloys. The best option will be drill with diamond spraying.
  • If too dense areas of concrete will come across during the drilling, they need to be pierced with a small hammer and a pin (punch).

Although it is real to drill a concrete wall using a drill, it’s still worth doing it with caution. Otherwise, the breakdown can be quite serious. It is better to use specialized tools for this.

Can STEP DRILL go through thick steel?

How to work with tiles using a drill

Often, people who do not have rich experience in the field of repair are afraid to drill such fragile material as tiles. However, this can be an urgent necessity, because you need to attach a variety of lockers and shelves in the kitchen, bathroom or toilet on something. Alas, in many respects, the condition of the tile after drilling is determined by the not the master taken over the drill, but the one who laid this tile. A competent tile lays a tile so that voids do not form between the tiles and the wall. In this case, neat drilling will not in any way harm the tile. If there are “air s” between the wall and the tiles, then most likely the tile will crack.

In order to properly drill a tile, you need to take a drill, a painting tape, a perforator (or a powerful drill with jackets on concrete). Then it will be necessary to perform the following actions:

  • The drilling site is marked with a piece of painting tape and marker. Adhesive tape here so that the nail does not slip along the surface of the tile.
  • Drilling is carried out strictly perpendicular to the material. The number of revolutions should increase gradually: from the minimum possible to 150-200 revolutions per minute. So you can avoid damage to both the material and the tool.
  • It is important to ensure that the drill does not overheat. If smoke began to go, then the drill needs to be urgently cooled.

When the holes are made, you can insert dowels into them. This is done using a hammer.

Drilling cast iron. How to do it competently

Cast iron is a fairly solid material, so drilling it is very, very difficult. In addition, cast.Iron products are fragile, therefore it is important not to crush them. Like other materials, cast iron has its subtleties in the issues of drilling.

Drilling thick blanks

If the workpiece has a thickness of more than 5 mm, and you need a hole of more than 8 mm, then it is better to first make a hole with a thin drill, and only then work with a thick.

  • When drilling thick aluminum blanks, chips often clog the drill channels, which is why it becomes more difficult to rotate. Therefore, when working with such material, get a drill from the recess and remove the shavings more often. Well, do not forget to pour abundantly with oil.
  • If you need to drill black cast iron, then for this you do not need to add any lubricating and cooler, since it is very well drilled on dry
  • Unlike black, white cast iron has increased strength, which means that it will require strong drill and lubrication to process it

These are the basic rules for drilling metal with a drill. I hope I managed to eliminate this gap in your knowledge. Good luck at home and see you!

That you can drill a shock drill?

Hammer drill Optimal for drilling holes in wood, metals, plastic, brick and light concrete. In addition, it can be used to work with fasteners, and at low speeds as a mixer.

If a metal has a regular viscosity, then it should be drilled at medium revolutions. This is about 400-1000 revolutions per minute, depending on the diameter of the hole. 400 revolutions used for holes 13 mm, 1000 revolutions for holes 3 mm. The intermediate holes are proportional.

Equipment and devices for drilling

For each stages, a tool for drilling holes has been developed. At the preparatory stage, the following tools are used to make accurate marking of the place of position of the future hole. To do this, use: core, special template or conductor. Kern is a well.Sharpened rod made of strong instrumental steel. With its help, a recess on the surface of the workpiece is applied at the point where it is planned to drill. Once in this recess, the drill does not slip over the surface and accurate drilling is carried out.

To increase productivity at enterprises with mass production, special templates are made. They allow marking the places of future holes in the same type of blanks. Special templates are used for drilled on cylindrical surfaces. They are made from a steel strip bent at right angles. A small hole is drilled on one of the surfaces, which will further allow the core to apply on the cylindrical surface.

To obtain increased accuracy of the marking, compliance with the vertical position of the drill and compliance with a given distance, between the holes the tool called the conductor is used. In addition, it is used when drilling thin.Walled products for which a strong mechanical effect is not possible (for example, a hammer blow to the core).

In addition to these products, tools and devices are used to drill a drill during its rigid fixation. To this end, I use:

The first two devices are made for a specific electrode design design. The conductor allows you to accurately direct the drill to the place of the future hole. It is successfully used for size not exceeding 20 millimeters. Therefore, in the manufacture of holes of large diameter using the conductor, preliminary drilling is performed.

All these problems are easily solved with the use of drill or lathes. Drilling machines are divided into three categories:

They are classified according to the following signs:

  • Table design;
  • Automation level;
  • The number of existing spindles;
  • Degree of accuracy;
  • The presence of additional opportunities.

The first category of machine tools allows you to solve almost the entire range of problems for the production of holes. The permissible distance is a serious restriction to which the cartridge with a fixed drill can move. This circumstance does not allow drilling to a greater depth. In this case, specialized machines are used. To increase labor productivity and increase the number of manufactured parts of the same parts, special units are constructed. They are able to perform a list of necessary operations with high accuracy and speed.

By design, such machines are produced with one or more spindles. The design of the table is diversity: ordinary, floating, lifting and others. The level of automation is determined by the way of performing drilling operations. The simplest machines are manual and mechanical. Automatic and machine tools are more advanced.

In addition to drilling machines, various lathes are used to solve these problems.

On the lathe, you can perform the entire list of operations related to the receipt of holes: directly drilling, drilling with subsequent deployment or zenki.

How to drill potato steel at home

TUTORIAL. How to Drill Glass

To improve the basic characteristics of the metal, its hardening is often carried out. Such a technology involves increasing the hardness of the product due to severe heating of the metal and its Rapid cooling. In some cases, after heat treatment, it is necessary to drill. Due to the increase in such a characteristic, the drilling of a hot metal becomes more difficult. Consider all the features of the drilling of a potato steel in more detail.

We drill a hole in the potato steel

The spread of the issue of how to drill hot steel can be associated with the fact that when using conventional technology, the tool is quickly blurred and comes into unsuitability. That is why you need to pay attention to the features of the drilling of a hot alloy. Among the features of the technology, we note the following points:

  • You need to properly prepare a hot blank.
  • In some cases, a special tool is required.
  • Cooling liquid is used.

If necessary, you can make a drill for hardened steel with your own hands, for which certain equipment and skills are required. However, in most cases, purchased options are applied, since it will better cope with the task when cutting potato steel.

Nuances when drilling

The technology in question has a fairly large number of features that need to be taken into account. The drilling of a hot metal is carried out taking into account the points below:

  • Before the work, attention should be paid to the hardness of the surface. According to this parameter, the most suitable drill is made. Firmness can be determined when using a variety of technologies.
  • During the drilling, a large amount of heat is released. That is why the Rapid wear of the cutting edge occurs. In this regard, in many cases, a fluid for cooling is supplied to the cutting zone.
  • When cutting the hardworked material, from time to time, it is necessary to sharpen the cutting edge. For this, a regular sharpening machine or a special tool is used. As an abrasive, an exclusively circle with diamond spray is suitable.

There are a variety of methods of cutting potato steel. Some of them greatly simplify the ongoing processing. Only when taking into account all the nuances can I improve the quality of the resulting hole.

Useful techniques for drilling

A wide variety of technologies can be used to work with potatoes. The most common technologies are characterized by the following features:

  • Surface treatment with acid. This technology is characterized by prolonged use, since a fairly large amount of time is required to reduce surface hardness. Sulfur, chlorine or other acid can be used for etching. The procedure provides for the creation of a side that will restrain the used substance in the cutting zone. After prolonged exposure, the metal becomes softer, it will be possible to drill when using the usual option.
  • You can use a welding machine to achieve a set goal. When exposed to high temperature, the metal becomes softer, which greatly simplifies the procedures.
  • Most often, a special drill is used. On sale there are options that can be used for processing rocky steel. During their manufacture, metal with increased resistance to wear and high temperature is used. However, the complexity of manufacture and some other points determine that the cost of a special tool is quite high.

In addition, to achieve the goal, a punch is often acquired. With it, you can make a small hole, which will simplify further drilling.

Using lubricants

When drilling potatoes, serious friction occurs. That is why it is recommended to purchase and use various lubricants. Among the features of this processing method, we note the following points:

  • First, the drilling zone is processed. A small amount of lubricant is applied to the surface where the hole will be located.
  • Oil is added to the cutting edge. A small amount of substance is required to process red steel, but it must be added from time to time, since when the tool is rotated, it scattered.
  • During operation, it is recommended to take breaks for cooling the cutting surface and the processed surface.

Special oil allows not only to simplify the drilling, but also to increase the service life of the tool used.

This is due to the fact that oil can reduce the temperature of the cutting edge.

Spiral drills are quite widespread, which are represented by a vertical rod with two grooves. Due to a certain location of the grooves, the cutting edge is formed. Among the features of the choice, we note the following points:

  • The winning drill was quite widespread. It can be used to work with various red.Hot alloys. However, the surface with too high firmness with such a tool cannot be processed.
  • The choice is made according to the diameter indicator. It should be borne in mind that getting a hole of large diameter is quite difficult. The option of executing a larger diameter is much more expensive due to the use of a large amount of material in its manufacture.
  • Attention is paid to the angle of sharpening, the purpose of the product and the type of material used in the manufacture. For example, cobalt performance options are characterized by higher resistance to high temperature.
  • It is recommended to pay attention to the products of extremely well.Known manufacturers. This is due to the fact that Chinese execution options are made when using low.Quality materials. However, such a proposal is much cheaper and can be used for short or disposable work.
  • When choosing a drill, you can navigate on the marked marking. It can be determined by which materials used in the manufacture of. The diameter of the hole that can be obtained when using the tool is also indicated.

How to drill with a screwdriver?

You can drill metal blanks not only using industrial equipment or electric drill, but also using a battery screwdriver. This power tool has low power. Because of this, it is suitable for drilling holes of small diameter and depth.

Drilling is carried out using industrial equipment and power tools

Best Drill Bit for Metal 2022[Top 6 Drill for Metal Picks]

It is important to choose the right equipment, and take into account the depth, the diameter of the hole. So that the equipment serves longer, the coolant should be used

You need to drill perpendicular to avoid damage to the workpiece, tool.

How to drill thick metal with a drill

The tool is immediately tuned to low or average turns, since the stainless steel tolerates high speeds poorly. This is how you can damage the edges or drill. The workpiece is installed on a firmly fixed base. It is advisable to use a metal workbench with a vice. Directly mechanical contact is performed only at the time of reaching the optimal speed of the drill. Then proceed to the cut.

The cobalt drill along the stainless steel is directed strictly perpendicularly under a light pressure. No deviations or jerks can be allowed. Over, even stops are not desirable, since the failure of the pace of movement, in principle, will negatively affect the structure of the hole. The process with the support of the initial revolutions ends. Reducing speed and disconnecting the device is carried out only after the drill is removed from the hole.

How to get in the right place?

If you think a little about this question, then the answer should visit your head even without a hint. Well, it seems to me at least. But if you think reluctantly, then read.

This case will require a core. This is a durable steel tool that has a cylindrical shape and tip at the end.

drill, thick, metal

We put the tip to the desired place of drilling and hit the roll on the other side with a hammer several times.

Now that you are fixed, put a drill to the irregularity surface and start drilling. The tip will not run away anywhere.

Power and revolutions when working with metal

An important factor is the choice of the tool, namely a perforator, drill or screwdriver, which will be made in metal. If you use a drill with a power of up to 700W you will not be able to make a large hole at once. A handmill with a capacity of up to 700W is best used to drill holes with a diameter of up to 110-13mm.

It is important to choose the right speed of a drill or screwdriver. After all, at high speeds, your drill will simply burn. So you ruin it.

drill, thick, metal

The larger the diameter of the drill with which you work, the less speed you need to choose.

How to drill metal correctly

Regardless of whether drill or on a machine is performed, the main thing is to choose the right speed of rotation. In most cases, the optimal speed is in the range of 1800–2500 rpm, however, completely different values ​​can be selected in practice depending on the accuracy of sharpening and the properties of the material.

Effective and Rapid drilling can not do without the ability to correctly correlate the speed of rotation and supply effort. It is easy to feel how the drill crashes into the metal, continuously securing the shavings, and begins to deepen into the bottom of the hole without significant effort. The turns, as a rule, are quite low. About 300-500 rpm.

The best indicator is that the drilling process is technologically correct, and the drill is sharpened correctly. A uniform yield of chips from both spiral grooves. The quality of the shavings is also a significant indicator:

  • When drilling steel, whole chips are released in the form of long spirals;
  • Cast iron, hardened steel and other fragile materials form a scattering of needles;
  • Aluminum is drilled with the formation of short curls;
  • When drilling stainless steel, dust and small flakes can be obtained.

If the drill does not crash into the metal, but the rubbing on it with a characteristic squeak, or an atypical type of chip is formed at the output, it is better to stop and correct the sharpening, otherwise there is a risk of metal release from overheating or breaking the working part.

Necessarily observing safety precautions! Should be drilled without gloves, protecting the eyes with locksmith glasses.

Before starting drilling, it is necessary to mark all the holes that must be done in details. The center of each hole should be outlined with a coreer. First, a small hole is drilled with a depth of 2-3 mm, a few drops of machine oil are introduced into it. You need to learn how to allow the drill to do your job: first press the tool very much, and when it cuts the edges into the metal, weaken the pressure and just slightly press, holding the uniform speed of rotation.

Other cooling liquids can be used instead of oil. So, when drilling stainless steel, the drill must be moistened with oleic acid. Its evaporation is harmful, so it is necessary to work in a respirator. Kerosene and soapy water are also well suited for cooling. A bar of the household per liter.

Particular attention is required at the time of the drill when drilling through holes. Quite often in such cases, the thin bottom breaks through the formation of large burrs, which fall into the spiral grooves and tighten the drill forward. The output from the part needs to weaken the pressure and slightly increase the speed.

drill, thick, metal

Drilling holes of large diameter is better in several stages, gradually increasing the diameter of the drill. This will not only reduce the load on the tool, but also extend the life span and ensure the purity of processing. Holes with a diameter of more than 13 mm are best drunk with crowns. Instead of oil, it is recommended to use consistent grease, so there will be less spray. The crown must be periodically given time to cool, and during operation carefully ensure that the teeth are plunged evenly, in other words, hold the spindle strictly perpendicular to the surface of the part.

The final stage of drilling is the removal of chamfers on both sides of the hole. To do this, you can use Zenkovka, and in its absence. A drill twice as much diameter, which is served with minimal effort at large speeds. To remove burrs from large holes, it is reasonable to use a round file and sandpaper. Published by Econet.Ru

If you have questions about this topic, ask them to specialists and readers of our project here.

Homemade drill

It is not necessary to buy an expensive drill for work, in some cases it can be made at home. The cobalt and tungsten alloy is best suited for this. Will win. Such a rod is easy to recognize among other glands: it will not succumb to cutting with a canvas for metal. Then do the following:

  • Install a diamond circle on the emery.
  • They end with one side of the rod and grind on this side of the slot, as on a flat screwdriver.
  • Then they grind the sides to make a sharp cone.

Dear visitors to the site, share in the Комментарии и мнения владельцев offers how else you can drill a hole in steel, which was subject to hardening.

Technologies for drilling holes in metal used in everyday life

In everyday life, three technologies are used to drill holes of metal. Blanks and sheets are clamped using clamps and a vice. Most often at home, ordinary household drills and cylindrical spiral drills are used.

Ordinary drilling

This metal drilling technology is familiar to everyone.

The hole is outlined using a hammer and a Kerner.

The workpiece is clamped in a vice or using a clamp.

The drill of the desired diameter is inserted into the drill cartridge and clamped.

Drill through a through or deaf hole.

Photo No. 3: Metal drilling at home


Metal drilling is a technology aimed at increasing the diameter of the previously made hole. To do this, take a drill of large diameters.

At home, holes usually have to be drilled in stages, gradually increasing the diameter of the tools used. This is due to the fact that the power of a household drill in many cases is not enough to drill the holes of large diameters in thick blanks. In addition, the phased approach reduces axial pressure on the drill. This greatly reduces the likelihood of breakdowns.

Image No. 1: The principle of drilling holes of large diameters in thick metal at home

Reduction in diameters of deep parts of holes

With this drilling technology, a shallow hole of a large diameter is first drilled, and then a smaller tool is used. The technology looks like this.

Image No. 2: Technology for reducing the diameters of holes in metal

Methods for drilling spot welding

This procedure is especially in demand at traffic maintenance stations, where car repair is carried out.

Drill for drilling point welding is the most effective and accurate way of separation of elements. Work is performed at low speeds. Otherwise, the drill will quickly overheat, which will reduce the severity of the cutting edges.

The diameter of the tool does not exceed 9 mm. From the classical design of the drill are distinguished by special protrusions that are imprisoned under the cone. This allows you to withstand the angle of 90º during the drilling of the part. Thus, there is no need for centering.

Some masters prefer to use cutting crowns. They explain their choice by the fact that the tip of the drill is worse cutting out the hardened part of the point welding.

It is noteworthy that, regardless of the type of cutting tool, it is made of one grade of steel. High.Speed R 18. For the production of budget models, alloying of 45x is used.

Drilling holes in metal is a rather complicated procedure that does not tolerate violations of technological requirements. The mode of work depends on the diameter and type of hole. In your opinion, you can qualitatively perform work using a hand tool without auxiliary devices? Write your opinion in the comment block.