How to choose the best metal drill bit for drills and other tools


Metal drills are indispensable tools that are used in production and at home to drill holes in objects with increased strength. When choosing this type of tool, first of all, it is necessary to focus on its declared performance characteristics, material of manufacture, sharpening angles and coating. Experts first of all recommend paying attention to the sharpening angles of cutting steel. The best metal drills, the ratings of which are presented below, have proven themselves to be the best and have received the largest number of positive reviews from consumers.

Irwin TurboMax 10503992

Irwin TurboMax 10503992 opens the ranking of the best metal drills. The tool is designed for work such as drilling holes in metal objects, plastic, and wood. The drills are also suitable for drilling holes in stainless steel with the obligatory use of coolant. The tip of the tools included in the kit is distinguished by a special sharpening, which ensures high drilling speed. The set includes 15 drills of different diameters and are highly durable. The cost of the kit is approximately 3,000 rubles.

Which drill set to buy

When choosing a drilling consumable tool, you must be guided by the following criteria.

Drill type

To carry out work with a certain material. Products can be screw or feather, hollow conical or stepped conical.

Purpose

The user must know what material he will have to work with: glass or concrete, wood or metal. Based on this, choose the appropriate consumables.

Dial type

Store sellers offer customers specialized kits for working with specific materials or universal kits.

Manufacturer

An important factor is also the choice of the manufacturing company. The more reliable the company’s reputation, the longer the working life of their products, the higher the quality of the work performed.

9.Hawera HSS-C SpiralBohrer GQ-32692

Hawera HSS C SpiralBohrer GQ -32692 is included in the list of the best metal drills. The set contains 25 twist drills with diameters from d 1.0 mm – 13.0 mm x with diameter increments of 0.5 mm. The surface of the working tools is coated with titanium nitride, which gives them special hardness and heat resistance. The tools are made of high-quality high-speed steel and are fully ground. These drills boast a long service life and impeccable operation throughout the entire period of operation. GQ-32692 is excellent for steel, alloy and non-alloy castings, brass, bronze, cast iron and cast iron. You can buy such a kit for 6,000 rubles.

What does the drill color mean?

All drills are produced in the following colors: bright gold, black gold, gray and black.

The bright golden color indicates that titanium nitride was used in the processing of the tool. The drill coated with titanium nitride has increased strength. During the drilling process, less friction is created between surfaces.

The black golden hue indicates that tempering was applied to the raw material in order to relieve internal stress.

Gray color indicates that no final processing was carried out to protect and strengthen the material. This means that the product is of low quality and will not last long.

The black color means that the tool has been treated with superheated steam, which has increased its wear resistance.

Cobalt metal drills P9 from the Polmart brand

Drills made of high-speed steel P9 standard DIN 338 are designed for drilling high-strength metals. These drills can work with both stationary and hand drills. The red resistance of the described drill for metal increases due to the high content of cobalt and other alloying elements in the composition of the tool. These cobalt drills are widely used for making holes in stainless, acid-resistant, refractory and high-alloy steels, the density of which reaches 1000 N/mm.

Metal drills from the Bosch brand

Metal drill bits from the Bosch HSS-CO product line are manufactured according to all standards from high-speed steel. Thanks to these drills, chips are removed very quickly during the drilling process due to the oxide coating of the metal drill. The drill has a chisel-shaped sharpening angle of 135° with mesh grinding and is used for drilling almost all steels.

Thermal resistance is improved by alloying the drill with cobalt, while the tensile strength is 1000 N/mm. This means that such a drill can be used for drilling almost all alloys and steels and at the same time perform production tasks of varying complexity. The required holding of the outer diameter of the drill is ensured by accuracy class h8.

DeWALT DT7926 Extreme2 HSS

DeWALT DT7926 Extreme2 HSS is one of the best metal drill bits that can be used both in production and at home when working with drills. They provide the cleanest and most accurate drilling possible, and are also characterized by high operating speed. The nanotechnology design of the tool prevents damage to the edges of the hole. The tip of the device has three flat edges that provide secure mounting in the chuck. The kit includes 29 drills with a diameter from 1 to 13 mm. The cost of a complete set is 5,000 rubles.

Types of drills for metal

There are 4 types of metal drills:

  1. Spiral – universal, suitable for any type of hole;
  2. Conical - characterized by a smooth conical shape, suitable for holes of any diameter. Need constant supervision from a master;
  3. Stepped – also conical in shape, but they make the process of drilling holes of a certain diameter easier due to the presence of steps of different sizes;
  4. Core cutters (annular cutters) – for holes with a diameter of 12 to 150 mm, multi-layer materials. They are characterized by low cutting force and produce high roughness values ​​that cannot be achieved with other types of drills. Suitable even for conventional drills. The shank must be strong and powerful to prevent slipping in the chuck. They are chosen depending on what kind of work is being done and what type of steel is being used. They differ from wood drills by the sharpening angle and the presence of two longitudinal grooves that divert the chips to the side.

Options in the photo

The most powerful drills for large holes Due to the steps of a given diameter, such drills make it easier to drill standard holes Working with a conical drill requires constant attention from the master Twist drills are the most familiar and common

Professionals identify 5 points of general criteria for choosing a metal drill:

  1. The type and characteristics of the metal you are going to work with, including the grade of steel;
  2. Depth of “penetration”;
  3. Type of drilling (through or penetrating);
  4. Hole diameter;
  5. What tool do you use (hand or electric drill, varieties - hammer drill, screwdriver or drill), its general characteristics.

Please note that you should not buy a set of drills for household use. If you don't use drills for professional purposes, you won't need many tools and your money will be wasted. If you are going to buy a drill for permanent use, do not skimp.

Bison MET-SH H19 R6M5

Bison MET-SH H19 R6M5 is a drill from a domestic manufacturer, included in the list of the best. Used for drilling both alloy and carbon steel. The tools are made of high-speed steel R6M5, have a cylindrical shank and are characterized by high accuracy and drilling speed. They are self-centering due to the cross-shaped point. The set contains 19 pieces of devices with a diameter from 1 to 10 mm. You can purchase MET-SH H19 in an eraser box for 1000 rubles.

AEG HSS-G 4932430416

AEG HSS-G 4932430416 are one of the best metal drills in an affordable price category. The devices are completely ground and made of high-strength and heat-resistant steel. The cutting head of the tool has a cross-shaped sharpening with an angle of 135 degrees, which ensures good alignment without the need for a core. 4932430416 are able to withstand high temperatures resulting from heating during drilling. Suitable for working with high-alloy steel and metal with a strength of more than 1000 N/mm². The set contains 19 pieces with a diameter from 2 to 10 mm. You can buy a set for 1500 rubles.

The best sets of drill bits for glass and tiles

Drilling into fragile glass or tile surfaces is different from similar work with other more durable materials. In this case, the use of diamond-coated drills with arrow- or feather-shaped tips is required.

Vira 550108

The domestic company offers users a set consisting of five drills with a diameter of 4, 5, 6, 8, 10 mm for drilling tiles or glass. The products are packaged in a convenient case with dimensions of 158x58x12 mm. Each of the nests has a corresponding marking.

Pros of the set:

  1. The cylindrical shank is convenient for clamping in the tool.
  2. Excellent sharpening of products.
  3. Affordable price.

Cons of the set:

  1. The only complaint is the pencil case.
  2. Products are not fixed in it and fall out.

X-Pro 5 Expertceramic 4-10 mm Bosch 2608587169

Feather drills from a German manufacturer have a special sharpening for working with tiles and glass. The set includes five drills of the most popular sizes from 4 to 10 mm. The products are packed in a plastic box.

Pros of the set:

  1. The length of the products is 70-90 mm, allowing for convenient drilling.
  2. Convenient and compact box.
  3. The presence of a cylindrical end allows you to securely fix the drill in the tool chuck.

Cons of the set:

  1. For some users, the cutting edge falls off after the first hours of work; for others, the drill breaks during proper use.

5. Metabo Bestell-Nr. 27,094 HSS-G

Metabo Bestell-Nr. 27 094 HSS G – one of the best drills designed for metal work. Spiral type devices have a cylindrical shank with a 135 degree sharpening of the tip, which ensures fast and accurate drilling. In total, the set contains 25 pieces, the diameter of working tools varies from 1 to 13 mm. The cost of the set is approximately 1,700 rubles.

The best wood drills

Similar models may have different designs. They are designed for accurate drilling of heterogeneous material and are often distinguished by a special sharpening that makes it easy to center the tool in the chosen location.

DeWalt DT4578-QZ

5

★★★★★

editorial assessment

98%

buyers recommend this product

The model has two cutting edges with large teeth, which ensures fast and accurate hole making, as well as clean material removal. The self-centering tip guarantees high drilling accuracy.

The length of the equipment is 122 millimeters, diameter - 35 mm. The triangular shank design reduces the possibility of slippage in the chuck during intensive use. The manufacturing material is high-quality steel of increased hardness.

Advantages:

  • neat and precise holes;
  • secure fit;
  • safety of use;
  • high strength;
  • thin edges.

Flaws:

  • high price.

DeWalt DT4578-QZ is purchased to produce clean and neat holes in softwood and hardwood, old floors and plasterboard.

Hammer 202-272 DR WD DBL Flute

4.9

★★★★★

editorial assessment

96%

buyers recommend this product

The Hammer Flute has a crown-shaped cutting tip that allows for easy drilling and quick penetration of the drill bit to the desired depth. A well-thought-out design eliminates clamping or jamming of the equipment and promotes efficient removal of chips during operation.

The length of the drill is 70 millimeters, the diameter is 4 mm. The material used is carbon steel. It is not afraid of large mechanical loads and is adapted to work in difficult conditions. And the double shape of the spiral allows you to apply less effort when drilling.

Advantages:

  • easy and accurate drilling;
  • fast chip removal;
  • high strength.

Flaws:

  • short length.

Hammer Flute professional drill bits are designed for making holes and countersinking plywood, chipboard and hardwood.

Sibrtech 704815

4.8

★★★★★

editorial assessment

88%

buyers recommend this product

This drill bit has a sharp tip that allows it to penetrate the wood easily and get the job done quickly. The main material of manufacture is high-quality carbon steel. To increase reliability and durability, carbide inserts are provided.

The diameter of the shank is 6.7 millimeters, the total length of the drill is 77 mm. The rim cuts through the wood before the blades, reducing the likelihood of chipping. The finished holes have smooth walls and a flat bottom.

Advantages:

  • reinforced design;
  • durable materials;
  • neat drilling;
  • easy entry into the material.

Flaws:

  • fast heating.

The Sibrtech drill ideally makes recesses for installing furniture hinges. Suitable for working with laminate, chipboard, soft wood, etc.

BISON Master 29505-25

4.8

★★★★★

editorial assessment

87%

buyers recommend this product

The special shape of the cutting part of the drill ensures quick and accurate preparation of large diameter holes. The material used is high-quality carbon steel. It is not afraid of heavy loads and retains its strength throughout its entire service life.

The length of the equipment is 152 millimeters, diameter - 25 mm. For more reliable fixation in the chuck, the shank has a hexagonal design. The sharpening of the drill and auxiliary cutters ensures easy entry even into hard wood.

Advantages:

  • fast and accurate drilling;
  • high strength;
  • reliable fit of the shank;
  • easy start of work.

Flaws:

  • The coating peels off quickly.

The ZUBR Master tip drill is recommended for forming holes in wood or plastic. Suitable for intensive professional use.

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Anchor 25219

Enkor 25219 is included in the rating of the best metal drills. The set includes tools of various diameters (from 1 to 10 mm). There are 19 working items in total. The tip of the devices is made of high-strength hard alloy, which ensures high speed and long service life. Enkor 25219 belongs to the category of budget drills intended for metal. It is quite possible to purchase a set of 19 pieces from a Russian manufacturer for 1000 rubles.

How to choose a drill

Not only the quality of the work performed, but also the possibility of drilling itself depends on the choice. For each material being processed, manufacturers produce equipment that takes into account the density and strength of the surface being processed. Alloys, the shape of the cutting edge and the angle of its sharpening are selected to suit the working conditions. When choosing, it is recommended to take into account not only the type of drill, but also its diameter, length, and shank design features. Our recommendations will help you understand these characteristics; based on them, you can choose a tool that will not let you down when working with any material.

Drill type

Classic spiral models continue to be in good demand. This is a good choice for a home workshop, for solving constantly recurring typical tasks. A simple design, effective removal of dust and chips, and simple installation make this tool convenient to use. Professionals prefer equipment of a more complex shape.

A core drill, which resembles a hollow cylinder in shape, is highly efficient. This tool makes it easy to cut large diameter holes in concrete and steel. Cone drills are distinguished by their stepped shape, each tier has a cutting edge. This allows you to drill holes of different sizes without changing equipment, which has a positive effect on productivity.

To work with wood, spiral models are used that effectively remove chips from the working area. “Ballerinas” help create holes of different diameters, and the feathers have a simple design and low price. Equipment for confirmants, equipped with an adjustable countersink, has been developed for furniture makers. Using a 35 mm Forstner drill, you can easily cut a blind hole for fittings without damaging the façade of the furniture panel or the front side of the workpiece.

Diameter

Diameter is one of the main characteristics. Products are produced with parameters from 1 to 55 mm. An electric drill is rarely equipped with accessories whose diameter is more than 10 mm - the power of the power tool may not be enough to complete the assigned tasks.

When choosing consumables for working with concrete, choose a diameter that matches the size of the dowels used. This allows you to carefully insert hardware into the prepared hole without breaking the shirt. The outer diameter of the dowel will expand after screwing in a screw or driving in an anchor, which will allow the fastener to be securely fixed in the wall.

When making a hole for a thread in metal, take into account the outer diameter of the bolt or screw. This operation has different accuracy requirements. For this reason, manufacturers produce products of different accuracy classes. Products of class B1 and B2 are standard tools, and category A1 are high-precision and are capable of drilling a hole with an accuracy of a fraction of a millimeter.

Length

The length of the drill depends on the type of work the master performs. When drilling sheet metal, no longer is required. This parameter is critical when working with brick, concrete, and wood. During the construction of houses, through holes are needed in the walls for laying utilities. The thickness of interior partitions is from 10 to 40 cm, depending on the level of sound insulation. The parameters of external walls and enclosing structures are from 40 to 60 cm. You can drill a hole using equipment of the appropriate length.

When choosing a tool, it is necessary to take into account that manufacturers indicate the total length in the markings. The working part is noticeably shorter, so it is recommended to check its dimensions when purchasing. For through drilling of concrete, you can purchase drills, the length of the working part of which reaches 90 cm.

Shank type and diameter

What should the shank be like? This part is clamped by a jaw chuck; its shape affects the reliability of the fixation. You can find products with square, cylindrical, triangular and hexagonal shanks. Square shanks have been used since the mid-19th century; they have proven themselves well, but they are difficult to fix in three-jaw chucks.

Cylindrical shanks are the most common. The advantages of this option are simple manufacturing and versatility. At high speeds, such a shank can scroll. This can be considered both an advantage and a disadvantage. Slipping protects against jamming, but does not allow large torque to be transmitted to it.

Hex shanks do not jam at high speeds; the design allows for the transmission of high torque. Work well in combination with jaw chucks. Spiral and feather versions of equipment and Forstner drills are produced with shanks of this type. In the 21st century, tools with SDS shanks, which have a complex shape, have become widespread.

Sharpening angle

The sharpening angle determines productivity, cutting mode and wear resistance. This parameter is selected taking into account the characteristics of the material being processed. For various types of steel, hard bronze and cast iron, the optimal sharpening angle is 116-116 degrees. For softer metals - standard bronze and brass - it is better to choose a cutting edge with an angle of 120-130 degrees. When working with copper, use a tool whose edges are sharpened at an angle of 125 degrees.

Concrete is a less demanding material in terms of sharpening angle. Pobedite tips are sharpened at an angle of 118-130 degrees. To work with plastic, it is recommended to use a tool with a sharpening angle of 90-100 degrees. It is easier to handle wood and aluminum equipment if the angle between the cutting edges is 140 degrees.

3. Wurth Zebra Spiralbohrersatz HSS

Wurth Zebra Spiralbohrersatz HSS are one of the best drill bits designed for metal work. Made from high-speed steel HSS. The devices provide maximum accuracy and drilling speed, and are also characterized by increased strength. Ideal for drilling holes in structural steel with a strength of up to 1000 N/mm², cast iron and plastic. Suitable for use in vertical drilling machines and electric drills. It is recommended to use a special coolant during operation. The kit includes 13 drills with different diameters, which are supplied in a plastic case. The cost of such a kit is approximately 700 rubles.

Best Universal Drill Sets

Such kits will find use among general specialists. They have products for drilling wood, stone, metal and other materials.

Makita D-08660

Screw drills made in Japan and China are designed for working with various materials: metal, wood, stone. The set includes 8 pieces, each type has its own color, which prevents confusion when choosing a drill for inexperienced users.

Pros of the set:

  1. The most popular sizes are available: 5, 6 and 8 mm.
  2. Convenient box for storage and transportation (dimensions 162x97x12 mm) with product markings.
  3. High quality products.

Cons of the set:

  1. Not detected.

Metabo 627190000

The universal set of the German company includes 18 screw drills with a diameter of 3 mm, 4 mm, 5 mm, 6 mm, 8 mm and 10 mm. They can be used to drill holes in porous concrete and stone, wood and metal. The products are collected in a compact cylindrical box measuring 65x60x161 mm.

Pros of the set:

  1. The cylindrical drive allows you to confidently clamp the drill in the equipment chuck.
  2. Conveniently sized box.
  3. Universal use.
  4. Availability of running sizes.
  5. Correct alignment of products.

Cons of the set:

  1. There is no drill lock in the package; they fall out when tilted.
  2. Poor quality of metal products, they quickly become dull and break.
  3. Poor quality plastic material of the box.

BOSCH Robust Line Multi Construction 2.607.010.521

A small but useful selection of German tool manufacturers. It includes 4 drill bits for working with wood, metal, stone and concrete. The set consists of the most popular sizes: 4x40x75, 5x50x85, 6x60x100 and 8x80x120 mm. The set is intended for use in cordless screwdrivers and impact drills.

Pros of the set:

  1. A cylindrical shank ensures reliable fixation in drilling equipment.
  2. Convenient pocket packaging dimensions: 176x73x18 mm.
  3. The deep groove of the spiral makes it possible to quickly remove dust and chips when drilling.
  4. Good product alignment.

Cons of the set:

  1. There are bent drill bits.

Attack N802-6

Attack N802-6 are not only one of the best, but also the most affordable metal drills. The tools included in the kit have excellent strength and provide good speed. There are 8 pieces in total in the set. The diameter of the drills varies from 3 to 10 mm. The hardness is 65.8 HRC. H802-6 not only provide high performance, but can last quite a long time. You can purchase a reliable tool kit from a Russian manufacturer for only 600 rubles.

Bosch 2607017154

Bosch 2607017154 completes the list of the best metal drills. This set is designed for making both through and blind holes in sheets of alloyed and non-alloyed steel with an allowable tensile strength of 900 N/sq.mm., copper, bronze, plexiglass, etc. Bosch 2607017154 are made of high-strength, high-quality and high-speed steel coated with titanium nitride. Not suitable for drilling aluminum. When working with the product, it is recommended to use coolant to increase service life. The kit is sold in a special plastic, shock-resistant box. In total, the set includes 25 pieces, the diameter of the products varies from 1 to 13 mm. You can purchase a set for about 3,000 rubles.

18 29

The best drill bits for concrete

Models of this type are equipped with tips made of a special alloy, which allows them to easily process hard material using rotary impact drilling. As a rule, concrete drills have a spiral shape.

Diager 726D12 HSS Pro

5

★★★★★

editorial assessment

98%

buyers recommend this product

Diager Pro is made of high-speed steel, is highly durable and is not subject to strong heating during intensive use. Special surface treatment guarantees perfect smoothness of the tool, and at the same time – neat and precise drilling.

The diameter of the equipment is 12 millimeters, length - 151 mm. The working part has a pointed shape, thanks to which it easily penetrates the material and does not leave chips. The wide spiral ensures efficient removal of concrete dust.

Advantages:

  • accuracy and precision when working;
  • quick dust removal;
  • does not heat up;
  • high strength;
  • secure fit in the chuck.

Flaws:

  • high price.

Diager 726D12 HSS Pro is suitable for working with concrete and other hard materials. The universal choice for intensive professional use.

Matrix 70880

4.9

★★★★★

editorial assessment

95%

buyers recommend this product

The Matrix drill has increased dimensions to 400 mm (with a diameter of 10 mm), which makes drilling at great depths easier. The main material of manufacture is carbon steel.

The high-strength carbide insert easily penetrates the concrete to ensure precise, clean holes. The tool is not afraid of deformation and heating during intensive work.

Advantages:

  • high strength;
  • long length;
  • reinforced plate;
  • precise work.

Flaws:

  • heavy (almost 160 g).

The Matrix long drill is recommended for preparing holes for dowels during repair work.

Granite 308120

4.8

★★★★★

editorial assessment

90%

buyers recommend this product

The main material used to manufacture the drill is carbon steel, which was subjected to a hardening procedure to increase reliability and resistance to heavy mechanical load.

The total length of the drill is 120 millimeters, diameter is 8 mm. The working element is a durable and wear-resistant carbide plate. It is secured by high-temperature soldering and can withstand intense drilling.

Advantages:

  • durable drill with reinforced tip;
  • long service life;
  • neat work;
  • low price.

Flaws:

  • fast heating.

The drill is intended for use with impact drills. An inexpensive tool will allow you to form holes in concrete, brick, natural or artificial stone.

VMX 511181

4.8

★★★★★

editorial assessment

87%

buyers recommend this product

The VMX drill is made of high strength steel. The reinforced plate is not afraid of intensive use. The cutting edge here is made in the form of a chisel, which guarantees easy and high-quality processing of hard materials.

The total length of the drill is 85 millimeters, diameter is 5 mm. The tool is not subject to deformation and excessive heat, which makes it suitable for long-term use.

Advantages:

  • high strength;
  • safety of use;
  • reinforced tip;
  • low price.

Flaws:

  • short length.

VMX 511181 is suitable for drilling under heavy loads. The right choice for processing concrete, brick, soft natural stone, etc.

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