- DEDRA QUATRO SDS MAX Drill Bit, 18x400/260 mm, for concrete, brick, stone, and aerated concrete. The HM drill bit, 135° angle, and SDS MAX chuck ensure fast, precise drilling and a long service life.
DEDRA WXQ1840 SDS MAX QUATRO Concrete Drill Bit 18x400/260 – Professional HM drill bit for concrete, brick, and stone
SDS MAX QUATRO Concrete Drill Bit 18x400/260 is a sturdy, professional drill bit designed for drilling holes in hard building materials.Product by DEDRA was designed for users who expect high durability, stable performance, and efficient operation with hammer drills and rotary hammers equipped with an SDS MAX.
It is the right choice for assembly, installation, renovation, and construction work where precision, load-bearing capacity, and reliability are essential when drilling into concrete, brick, stone, and aerated concrete..Diameter 18 mm and length 400/260 mm allow for drilling deeper mounting holes while maintaining good control over the tool.
QUATRO SDS MAX drill bit for concrete.
What is the SDS MAX QUATRO 18x400/260 Concrete Drill Bit??
SDS MAX QUATRO Concrete Drill Bit 18x400/260 is a specialized hammer drill bit for mineral materials, designed for use in demanding conditions.Its design is engineered to effectively transfer the impact energy from the power tool to the workpiece, resulting in faster drilling and less strain on the operator.
The most important feature of this product is the combination of tool steel with a head made of HM, i.e., cemented carbide.This design increases the working tip's resistance to abrasion and damage, especially when it comes into contact with concrete, brick, or stone.As a result, the drill bit remains effective even with frequent use on construction sites or during intensive renovation work.
Variant QUATRO refers to a design optimized for stable and efficient drilling.Vertex angle 135° makes it easier to start drilling and helps maintain the drilling path, which is especially important when drilling holes for anchors, dowels, mounting rods, cable glands, or structural fasteners.
- 18 mm diameter – ideal for larger mounting and installation holes.
- Length 400/260 mm – allows for drilling deeper holes in walls, ceilings, and structural elements.
- HM Drill Bit – increases durability when working with hard building materials.
QUATRO SDS MAX DEDRA WXQ1840 Concrete Drill Bit – Durability, Precision, and Efficient Drilling
QUATRO SDS MAX DEDRA WXQ1840 Concrete Drill Bit was designed for people who need a tool for consistent, effective, and safe work.This product is recommended for both professionals and discerning home users who perform renovation, assembly, or installation work and don't want to waste time on low-quality tools.
The first major advantage is the durable material it’s made of.Tool steel ensures the body's resistance to stress, while the carbide tip helps maintain drilling performance in very hard materials.As a result, this drill bit performs well when drilling in substrates that cause standard drill bits to wear out quickly.
The second important feature is a precise vertex angle of 135°.It makes it easier to guide the drill bit through the material and reduces the risk of the bit tip sliding uncontrollably across the surface.This is important, for example, when drilling holes for heavier fasteners, where the correct hole geometry affects the stability of the entire assembly.
The third benefit is the SDS MAX chuck, which ensures a secure fit in a compatible power tool.This system is commonly used in professional rotary hammer drills designed for heavier-duty work.As a result, the drill bit works well with tools that have higher impact energy, maintaining stability during drilling.
In everyday use, the product can be used, among other things, for installing railings, anchoring steel components, drilling holes for electrical wiring, preparing anchor points in concrete walls, and drilling into foundations, ceilings, brick walls, or stone elements.This tool is ideal for situations where ordinary drill bits aren't enough.
Where is the SDS MAX QUATRO 18x400/260 concrete drill bit installed??
SDS MAX QUATRO Concrete Drill Bit 18x400/260 is designed for use in power tools equipped with an SDS MAX.These are most often professional hammer drills and rotary hammer drills designed for drilling into concrete and other hard building materials.
To install the drill bit, insert the SDS MAX shank into the tool's socket according to the user manual for that specific device.Once properly seated, the drill bit is locked in the chuck, allowing for effective transfer of impact energy.Before starting work, make sure the drill bit is securely fastened and appropriate for the type of hole you are drilling.
This type of mounting works particularly well for heavier-duty applications, as it ensures stable guidance and the ability to withstand high loads.The DEDRA WXQ1840 drill bit can be used in construction tools on construction sites, for home renovations, room conversions, the installation of technical systems, and during construction work.
Examples of locations and situations where this drill bit is installed and used:
- in SDS MAX hammer drills used for drilling into concrete walls,
- in rotary hammer drills during installation work,
- when drilling holes in ceilings, foundations, and walls,
- when installing structural components, brackets, anchors, and fasteners,
- in renovation projects where a larger hole diameter and sufficient working depth are required.
Applications for the 18 mm SDS MAX QUATRO drill bit – concrete, brick, stone, and aerated concrete
The drill bit is designed for use in materials commonly found in construction.Thanks to its diameter of 18 mm , it is ideal for drilling holes for fasteners that require a higher load-bearing capacity.It can be used both indoors and outdoors, for example, during the assembly of structures, installations, or technical equipment.
In concrete , the SDS MAX QUATRO drill bit allows you to drill holes for anchors, expansion sleeves, mounting screws, or cable glands.It is useful when installing heavier industrial shelves, brackets, mounts, machines, railing components, and steel structures.
In brick it works well during renovation and installation work, such as when installing electrical, plumbing, or ventilation systems.Properly selected bit geometry helps maintain control during drilling and reduces the risk of damaging the material when the correct technique is used.
In stone , the product can be used to drill mounting holes in natural and mineral materials, for example, in gardening, facade, or construction work.In contrast, in aerated concrete it allows for the quick drilling of holes for fasteners and utilities in lighter wall elements.
This is a versatile drill bit for many everyday construction tasks: from installing gates and fences, to mounting technical shelving, to drilling holes for installations in load-bearing and partition walls.
Technical Specifications for the SDS MAX QUATRO Concrete Drill Bit 18x400/260
| Product name | SDS MAX QUATRO Concrete Drill Bit 18x400/260 |
| Brand / Series | DEDRA |
| External system code | WXQ1840 |
| EAN | 5902628970107 |
| Type | QUATRO SDS MAX concrete drill bit |
| Drill type | Concrete drill bit |
| Drill diameter | 18 mm |
| Drill length | 400/260 mm |
| Handle type | SDS MAX |
| Material | Tool steel + HM |
| Vertex angle of a drill bit | 135° |
| Destination | Concrete, brick, stone, cellular concrete |
| Number included | 1 piece |
| Package/Product Dimensions | 510.00 x 50.00 x 18.00 mm |
Why Choose the SDS MAX QUATRO Concrete Drill Bit 18x400/260??
When choosing the DEDRA SDS MAX QUATRO 18x400/260 Concrete Drill Bit, you’re getting a tool designed for demanding tasks.This product combines high durability, drilling efficiency, and practical performance characteristics.It will perform well in applications where accuracy, repeatability, and resistance to heavy-duty use are essential.
For the customer, this means, above all, time savings and greater reliability.A good drill bit reduces downtime, allows you to complete tasks more quickly, and helps you drill holes of the correct size.This is particularly important when installing components that must be mounted securely and stably.
- Professional SDS MAX Chuck – secure attachment in compatible hammer drills and rotary hammers.
- HM Cutting Head – greater resistance to wear when working with hard materials.
- 18 mm diameter – a practical size for technical and construction fasteners.
- Length 400/260 mm – allows for drilling deeper mounting holes.
- 135° angle – stable start to drilling and better control over the drill path.
- Versatile Applications – concrete, brick, stone, and aerated concrete.
This drill bit is a good choice for construction crews, installers, fitters, renovation contractors, and users who expect their tools to be durable and deliver consistent results.
FAQ - frequently asked questions
Does the SDS MAX QUATRO 18x400/260 concrete drill bit fit a standard drill??
Not.This drill bit is designed for power tools with an SDS MAX, i.e., primarily for hammer drills and rotary hammers that support this mounting system.
What materials can this drill bit be used on??
This drill bit is designed for drilling in concrete, brick, stone, and aerated concrete.It is ideal for construction, assembly, renovation, and installation work.
What do the dimensions 18x400/260 mean??
The marking indicates the diameter and length of the drill bit.The diameter is 18 mm, and the length is given as 400/260 mm, which refers to the total and working lengths, respectively, as specified by the manufacturer.
Is this drill bit suitable for professional use??
Yes.The SDS MAX design, HM cutting head, tool steel construction, and 18 mm diameter make this product suitable for more demanding installation and construction work.
Can a drill bit be used to install anchors??
Yes, the diameter is 18 mm and a length of 400/260 mm mean that the drill bit can be used to drill holes for selected anchors, fasteners, and mounting elements, provided their dimensional requirements match the hole specifications.
How many pieces are included in the set??
The set includes 1 SDS MAX QUATRO concrete drill bit.






