What are drills for a rotary hammer drill?. The most popular brands of concrete drilling tools

What drill to drill through hard materials, concrete, brick or stone: rating of the best peorator drills

Peorator drill is a special metal tool designed for punching holes of different sizes in hard materials, such as concrete, brick or stone. The attachment is used in repair and construction work and is part of the peorator (percussion machine). The drill is made of steel alloys, which gives it the ability to penetrate hard structures. Alloy of tungsten carbide and cobalt. bobedite. is used for dressing the tip of the tool. Due to its rugged design the attachment has a high performance and wear resistance.

The standard drill consists of several parts:

  • shank. element for connection of the auger to the chuck. Has several varieties and is located in the back of the device;
  • spiral;
  • core;
  • cavity for dust extraction. special groove for tool to be cleaned from construction debris by itself
  • carbide-cutting plate. the tip of the tool that allows you to work.

What is a drill for a geared tool: features of a replaceable element of the tool

Drill bit is a working percussion-cutting replaceable part of the electromechanical tool. Its appearance is similar to that of a drill. For peorator, the nozzle is made of more durable material. It has a tail part with special grooves. Characterized by a large size range. Concrete drill has a characteristic feature in the form of a spiral shaped section, a specific geometry of the cutting edge.

Hammer drills for rotary hammers come in different shapes and sizes

The drill consists of the seat tail, spiral rod and cutting part. It is fastened in the tool’s chuck by its tail end. The spiral rod is the working part. It is designed to remove residual dust and drilled concrete from holes. The basis of the element is a cutting part.

The drill is made of several materials. Alloy tool steel is used to make the surface. Cutting edge is additionally tipped with diamond or pobedite. Such manufacturing technology allows to increase the productivity of the product and increase its service life.

Useful tip! To extend the service life of the consumable for the cutter the chuck and shank must be coated with special lubricant before work commences.

drills, rotary, hammer, drill

Hammer drill is a consumable for the tool and is used for making holes in concrete, brick or stone surface. It is impossible to drill through metal or wood with this bit. This is due to the specific design of the cutting part. For this purpose, only metal drills for peorator are used.

Peorator drill is used for drilling into brick, concrete or masonry surfaces

Concrete drills are available in various sizes. For household use, it is enough to buy a nozzle with a diameter of 6-10 mm for a small georator. the dowel is selected in accordance with the size of the dowel. the maximum diameter of the product is up to 50 mm. For securing large objects a long drill with a diameter of 20 mm should be used. Product lengths can be 10, 50, 80 and 100 cm. When manufacturing augers, a strict ratio between diameter and length must be maintained to ensure effective, reliable and durable work of the nozzle.

Useful tip! The diameter and length of the product can be seen in the marking.

Working part of the auger

The working part of the auger, which directly performs the drilling process, is made of metal alloy, and its condition determines the productivity of labor and the safety of human use of the auger. The working part can have different shapes and is classified according to the purpose as follows:

  • auger drill. an excellent option for deep holes of different diameters. Its spiral design and high torque allow efficient removal of dust and sludge while working, thus reducing the load on the tool and reducing the time required to make one hole.
  • Auger with small groove angle. for extremely shallow work (e.g., Makita rotary hammers). Its purpose is the process of drilling a significant number of shallow holes.
  • A drill with a big slant angle of the working grooves, providing high drilling speed and productivity. The load on the rotary tool is higher than with auger augers. Optimal for drilling single deep holes.

Drills with one or more helical grooves and specially shaped grooves provide steadiness of the auger, its balanced central positioning when drilling, reduced vibration and therefore the load on the rotary table and the productivity of the work performed.

How to choose the right augers for your rotary tool?

The type of work can be different. making holes (blind or through), destroying concrete structures, digging channels, etc.д. For holes up to 40 mm, various types of drills are used, drills over 40 mm. crowns; for making channels and localized destruction of structures. chisels, for the destruction of structures. spades. There are also specialized tools for certain types of work.

Drill diameter is chosen according to the purpose of the hole. For home repair in most cases it is enough to have drills with a diameter of up to 10 mm. with their help you can drill holes for installation of shelves and furniture, drywall structures, crates, plaster beacons, etc.д. For installation of heavy structures drills with diameter up to 20 mm can be required, this tool is also widely used in construction industry. drills with a diameter of 26-40 mm can be used for laying pipes, but they are suitable for powerful drilling tools, which not everyone has. In this case a drill bit with SDS or SDS-plus shank could be the solution.

Depending on the type of material, choose drill bits with soft, medium or high-strength carbide tips (for different kinds of concrete, stones and bricks), for high-strength reinforced concrete it can be reasonable to choose diamond-coated. However, for most domestic and construction work conventional pobedite drills are more than sufficient.

to choose the augers with the type of shank that suits the chuck of the available rotary hammers. Most drill types are not compatible with each other (with the exception of the SDS, which can be fitted into an SDS-plus chuck), which must be taken into account.

To get the job done properly, you have to use quality drills, which tend to cost a lot. In this case, the larger the diameter and length of the drill, the more expensive it is. These costs are recouped by the long operation of the tool and the achievement of the planned result. Do not take a big, but cheap drills. in 100% of cases it is a low-quality product, such tools will blunt, bend or break at the first centimeters of the hole, and you’ll have to buy a new one.

With the right choice of drill, you will do the job quickly and efficiently, and most importantly. protect yourself from unnecessary costs for the purchase of new equipment and correction of errors.

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Best Rotary Hammer Drills 2022

Types of nozzles and drills. which manufacturers are better

It is recommended to give preference to brand working equipment Bosch, Metabo, Makita. Their replacement parts not only last a long time, but are less likely to damage tools and surfaces.

Tip types (carbide cutting plates) of drills

Let’s look more closely at the types of working removable elements of electric torches.

Auger nozzles

They are used when it is necessary to create deep pits. The spiral design provides effective dust removal, which reduces the time of work.

Slant drill bits

They are useful when you need to make a small hole. They are durable, but uncomfortable for long-term use: due to the poor removal of debris, the user has to manually remove the dust from the hole formed.

Spiral drill bits

They are best suited if you need to drill through a thick wall: the design will ensure quality and timely removal of construction waste.

Peorator crown


Used in electrical installation work. Needed when holes for sockets or switches are required. There are diamond or carbide-tipped drill bits.

Other drill types

There are varieties of bits that are useful in certain specific situations:

  • A drill bit with a large groove angle will produce deep holes at high speed, wear out quickly, putting a lot of strain on the power tool.
  • A nozzle with a low groove angle will quickly drill a large number of small holes.


It is necessary to pay attention not only to the shape of the drill itself, and the material of its manufacture, but also it is worth looking closely at the form of execution of the tip. They can be classified rather precisely, and the right choice is extremely important for work with concrete type of tool.

Let’s distinguish the following types by their tails:

  • SDS. ranks first in popularity has a diameter of 10 mm and 2 grooves.
  • SDS-plus. the second most popular, 10 mm in diameter tail with 4 grooves.
  • SDS-max. popular, designed for peorators of large weight and heavy work, make such a connector on tooling from 20 mm and up to 80 mm.
  • SDS-top. not common type, has 14 mm diameter and 4 grooves.
  • SDS-quick. instead of grooves there are protrusions, it is rare.

If necessary, you can resort to the use of special drill adapters, for convenience, or to combine with your particular device. Drills with the ability to apply blows to make medium, and large holes are highly undesirable. Drill can not be used as a drill in this case, and will only aggravate the situation. This leads to frequent failures.

What is a drill for peorator: features of the replacement element of the tool

Drills for peorator have different shapes and sizes

Useful tip! To increase the service life of the consumable element for the cutter, before starting work the chuck and shank must be coated with special grease.

Peorator drill is used for drilling in brick, concrete or masonry surfaces

Useful tip! Information on diameter and length of the product is shown in its marking.

SDS shank. the ingenious is simple

The distinctive feature of peorator drills is the special shape of the shank with several grooves. It is a part of a special guiding system allowing to efficiently transmit rotation, shock vibration and maintain alignment with the driving spindle.

There are five different varieties of SDS shanks, but only two of them are common: SDS-Plus and SDS-Max. They differ in the number of grooves (SDS-Max has five instead of four) and dimensions, SDS-Plus is approximately twice thinner. SDS-Max shanks are used for drills and core bits starting from 20 mm, while the SDS-Plus is used for drilling holes up to 26 mm.

Drill vs. Hammer Drill vs. Impact Driver: What Drill Should I Buy

What can the color of the drill tell about?

In addition to the marking indicating the composition of steel and impurities, it is necessary to understand what the color of the drill bit indicates. This will tell what additional processing the metal has undergone and how it will affect the characteristics of the tool. Here are common types of colors.

Steel gray

These are the simplest drills with no additional coating. They will rust if left for a long time in a humid environment. Do not apply excessive pressure on the tool when drilling, otherwise the core may break.

Gold tint

This color indicates that they have been hardened. The treatment makes the outside very tough, but increases the inner brittleness. Drills keep sharpening for a long time, but are prone to break. Periodic re-hardening is required to extend their service life.

Gold bright color

These drills are immediately noticeable on the counter with their bright color. The effect is ensured by a surface treatment with titanium. The coating reduces frictional wear and tear and promotes long service life. Drills are of the high-strength class and are priced accordingly.


Steel is steam cured. An inexpensive way to increase external strength while avoiding internal brittleness. Drills hold sharpening better and last longer than gray ones.