Diamond segment disc for concrete grinding, double point 125x22.2mm
Are you looking for a top-notch tool for fast, precise and extremely efficient processing of hard construction surfaces? The Diamond Segmented Concrete Grinding Disc Double Point 125x22.2mm (SKU: M90904) is a professional solution for both demanding construction masters and home DIY projects. With this high-performance grinding disc, you will easily overcome even the most stubborn irregularities on concrete and other mineral materials.
Thanks to its advanced dual-segment design and extremely high-quality diamond, this disc provides the optimal balance between grinding speed, work control and long tool life. Forget about quick-wear grinding discs – invest in performance that lasts.
Why choose a 125x22.2mm double point diamond disc?
When preparing floors or walls, it is essential that the surface is perfectly flat and clean. The 125 mm diamond segment disc is specially designed to remove the toughest surface layers. Whether it is removing old tile adhesive, leveling screed or grinding exposed concrete, this disc gets the job done faster and with less effort.
Its key advantage is the dual segment (dual point), which allows for more aggressive material removal while maintaining exceptional stability during work. This means less vibration, less fatigue for the operator and a significantly better end result.
Main advantages and benefits of use:

Exceptional durability: Modern heat treatment processes and special surface protection significantly reduce disc wear and extend its lifespan.
High diamond segment: A 5 mm high diamond allows for long-term and intensive use of the disc without the need for premature replacement.
Efficient cooling: The segmented design of the plate ensures excellent airflow and optimal cooling during operation, preventing overheating and extending the life of the tool.
Universal compatibility: Standard inner diameter of 22.2 mm and outer diameter of 125 mm ensure a perfect fit with most standard angle grinders on the market.
Wide range of applications: Ideal choice for grinding concrete, exposed concrete, bricks, paving stones, clinker, aerated concrete (siporex) and ceramic tiles.

Technical features and product specifications
When choosing a grinding tool, technical data is key to ensuring safety and efficiency at work. The M90904 diamond disc boasts the following technical parameters:

Outer diameter of the plate: 125 mm
Inner (clamping) diameter: 22.2 mm
Diamond segment height: 5 mm
Segment design: Double point (double segment) for greater stability and faster grinding
Intended use: Dry and wet grinding of mineral materials
Compatibility: Suitable for various angle grinder models

Versatile use: From rough sanding to fine surface preparation
This 125 mm diameter diamond cup is an indispensable tool for renovations and new construction. Its innovative segment geometry enables the following tasks:
1. Preparing the substrate before laying paving stones and ceramics
Before laying new tiles or paving slabs, the surface must be thoroughly cleaned and leveled. The board effectively removes residues of old adhesive, mortar, screed and other impurities and creates a perfectly adherent surface.
2. Smoothing exposed concrete and removing formwork seams
When concreting columns, walls or stairs, visible traces of formwork panels often remain. With a double-point diamond disc, you can remove these irregularities quickly and without damaging the surrounding material.
3. Edge processing and material shaping
Due to its excellent control and reduced vibrations, the board is also suitable for more precise work, such as shaping the edges of paving stones, clinker or adjusting the dimensions of ceramic tiles and aerated concrete.
See how a diamond blade works in practice
To get a better idea of the power, speed, and efficiency of this diamond disc, watch the video below, which shows it in action when grinding demanding concrete surfaces:
https://youtu.be/cMqrM4XDcI4

Frequently Asked Questions (FAQ)
1. What materials is this diamond blade best suited for?
The disc is specially designed for grinding and cleaning irregularities on surfaces made of concrete, exposed concrete, brick, paving stones, clinker, aerated concrete (siporex) and ceramic tiles. It also works great for removing old mortar and screed.
2. Does the disc fit my angle grinder?
Yes, the disc has a standard outer diameter of 125 mm and an inner clamping diameter of 22.2 mm. These are standard dimensions that fit most electric and cordless angle grinders on the market, allowing for easy installation without additional adapters.
3. How does the height of the 5 mm diamond segment affect the work?
The 5 mm segment height ensures an exceptionally long disc life. It allows for long-term use even on everyday, more demanding projects, as the diamond layer wears down significantly more slowly than on thinner, cheaper versions.
Order your diamond plate today!
Don't let a bad tool slow you down. Choose professional quality, durability and speed with the Diamond Segmented Concrete Grinding Disc Double Point 125x22.2mm. Ensure perfect results and smooth surfaces on your next project!


Responsible persons:
MAR-POL - MAR-POL SCIMPORT EXPORT M.ŚCIANA, K.ŚCIANA, 26-020 Chmielnik, Suchowola 6a, Poland, obsluga@mar-pol.sklep.pl, +48607865357
Distributor for Slovenia: Haloorodje.si, Online Sales, Rok Groznik sp, Podturn 42, 8350 Dolenjske Toplice, info@haloorodje.si, +38669731944, Slovenia
Product origin: China

Instructions for using the product:
• Preparing the grinder:
• Before installing the plate, turn off the sander and disconnect it from the electrical outlet.
• Check that the grinder is suitable for a disc with a diameter of 125 mm and a hole of 22.2 mm.
• Check the condition of the grinder and clean all areas where the disc will be attached.
• Panel mounting:
• Place the disc correctly on the grinder so that the 22.2 mm diameter fits perfectly into the grinder opening.
• Use the supplied locks or screws to secure the panel firmly.
• Check that the panel is firmly attached and that there is no play.
• Checking correct installation:
• After installation, rotate the plate by hand to check that it rotates freely and is free of obstructions.
• Before starting sanding, run the sander at idle for a few seconds to check that everything is in order and there are no vibrations.
• Usage:
• Always use appropriate protective equipment (safety glasses, gloves, hearing protection).
• When sanding concrete or other materials, move the plate slowly over the surface and do not apply excessive pressure to prevent overheating or damaging the plate.
• Ensure proper cooling of the board with regular breaks.
• Maintenance:
• After use, clean the plate with a soft brush and check the condition of the diamond segments.
• If you notice any signs of wear or damage, replace the plate to prevent the risk of injury.

Useful tips for work:
• Proper protection: Always use protective equipment (goggles, gloves, ear protection) when working with a diamond segmented blade, as a lot of dust and particles are generated during grinding.
• Speed control: Do not apply too much pressure to the disc while grinding, as this can cause the disc to overheat and wear out faster. Instead, let the diamond segments do their work.
• Regularly check the condition of the disc: Check the diamond segments and clean them after each use to ensure long-lasting and optimal performance.
• Cooling: If you are working on larger surfaces, stop work regularly and let the plate cool down, which will extend its lifespan.
• Proper storage: After use, store the board in a dry place, protected from dust and moisture, to prevent corrosion and damage.
• Correct use of the grinder: Make sure the angle grinder is properly adjusted and functioning properly to prevent damage to the board or accidents.
• Use on suitable materials: The diamond disc is designed for grinding concrete, do not use it on softer materials such as wood or plastic, as the disc may be damaged.
• Pressure adjustment: When grinding concrete, adjust the pressure according to the hardness of the material. Press more gently on softer concrete, and use more force on harder concrete.
• Circular motion: Move the disc over the surface in a circular motion to achieve even sanding and prevent uneven wear on the disc.
• Cleaning after use: Always clean the plate after each sanding to remove accumulated concrete or mortar particles and extend the life of the segments.

Warnings:
• Always wear safety glasses, hearing protection, protective gloves and a respiratory mask during use.
• Never use a damaged, cracked or deformed disc.
• Before assembly, check that the maximum permissible speed of the disc matches the speed of the grinder.
• The disc is intended for grinding and is not suitable for cutting materials.
• Do not touch the rotating plate during operation.
• Always unplug the tool before changing the disc or performing any maintenance.
• Grinding concrete creates fine dust that can be harmful to your health – use appropriate protection.
• Do not operate without the sander protective cover properly installed.
• Do not use the product for materials that are not listed as suitable.
• Keep out of reach of children and unauthorized persons.

Same summary

The 125x22.2 mm diamond segment disc for concrete grinding double point is the most sensible choice for users who need a reliable disc for precise grinding of concrete, stone or hard ceramics in a domestic or semi-professional environment. The 125 mm diameter allows for good control and precise work with hand grinders, while being suitable for medium-demanding projects where excessive wear is not expected. Due to its targeted purpose, this disc may not be the best suited for intensive industrial use or processing of larger surfaces - in these cases, it is recommended to choose larger or specialized discs.

Recommendation source: Enaa guides and team experiences.

User view

Typical users of this diamond segment disc are home craftsmen, small renovation contractors or anyone who occasionally renovates concrete and stone surfaces and is looking for a balanced solution for precision grinding. In practice, the disc is useful for repairing terraces, sanding stair edges, removing adhesive residue or preparing surfaces before applying a finishing coat. It will also come in handy when leveling details on ceramic tiles, when a greater degree of precision and control over the tool is required.

Users often trust Mar-Pol brand products, as they are known for affordable and reliable solutions for garden and construction tools, which allows for easier upgrades or replacement within the same brand ecosystem.

Why buy at Enaa

At Enaa, when choosing cutting discs, you can count on the professional support of an experienced team and a wide range of different models and diameters, which allows for easy comparison and the appropriate decision based on your needs.

Answers to frequently asked questions

Is the disc compatible with all 125 mm diameter angle grinders?

Yes, the disc is suitable for most standard angle grinders that support a diameter of 125 mm and have a bore of 22.2 mm, but always check the technical compatibility of your tool before use.

Which materials is this diamond segment disc best suited for?

The plate is specifically designed for grinding concrete, ceramic surfaces and various types of stone, but is not suitable for metal or wooden materials.

What does the "double dot" mean on this board?

The “double point” designation means that the disc has a special segment arrangement for improved efficiency and faster material removal, with less chance of uneven wear.

How long does a diamond segmented blade usually last in home use?

The lifespan depends on the frequency of use and the correct choice of material, but for home use it usually lasts for several projects or several hours of continuous sanding.

Is there any special care or storage required for the board?

After use, we recommend wiping the board with a dry cloth and storing it in a dry place to prevent dust accumulation and extend its lifespan.

Description updated: April 2026