In brief: Choosing the right cutting disc depends on the material, tool and task. For universal metal cutting, high-quality diamond discs are a good choice, while resin-bonded discs excel at precise cuts in steel. Alongside material compatibility, disc size, speed and safety standards are crucial. Our comparison highlights the key strengths and applications of the best models.
A cutting disc is not a universal tool. Choosing the wrong one leads to poor results, excessive wear and, in the worst case, dangerous accidents. Our 2026 test and comparison examines the most important models and shows you what really matters when choosing one.
We assess the discs based on their key properties: cutting performance, service life, handling and safety. We also consider different applications, from occasional DIY projects to professional construction sites.
Which cutting disc do I need?
The answer depends on three factors: the material being cut, the tool available and the desired cut quality.
The material makes the difference
There are specialised discs for every material. A disc for steel will cut concrete poorly and will quickly be damaged.
- Metal: Discs with aluminium oxide or zirconia alumina grains are commonly used here. Special resin-bonded discs are often used for stainless steel and harder alloys.
- Stone, concrete and tiles: Diamond cutting discs are the first choice here. Their steel circular saw blade fitted with diamond segments cuts hard, brittle materials cleanly and offers a long service life.
- Wood and plastic: Special cutting or grinding discs for soft materials help prevent scorching or jamming.
The tool sets the limits
Your power tool limits the possible disc size and type. A small angle grinder with a 125 mm mount cannot take a 230-mm disc. The tool's power output must also match the disc.
Tip: Always buy cutting discs that match the maximum permitted size and speed of your cutting tool. You will find this information on the rating plate.
Cutting disc test: Setup and methodology
Our comparison is based on practical tests. We check cutting speed in different materials, measure material removal and assess the quality of the cut edges.
Service life is equally important. How many linear metres can a disc cut before its performance noticeably declines? Factors such as vibration, noise levels and ease of changing the disc are also included in the assessment.
The best cutting discs compared
Our 2026 comparison focuses on versatile discs for DIY and professional use, particularly for cutting metal and steel. Here you can see a direct comparison of the tested models.
The highest-rated cutting discs in our range compared directly:
| Model | Customer rating | Availability |
|---|---|---|
| CSD non-woven abrasive disc 125 mm 1 piece purple 🏆 Test winner | ★ 5,0 (21) | In stock |
| 18V angle grinder BL 125 mm - with battery and charger - | ★ 4,8 (13) | In stock |
| 18 V angle grinder BL 125 mm WWSBL 125 (battery and charger not included) | ★ 4,6 (5) | In stock |
| 120 W wet table grinding machine TWSPCJ grinding wheel | – | Currently unavailable |
| 2400 W angle grinder 230 mm | – | Currently unavailable |
Based on our tests, we can particularly recommend several products.
The is a reliable all-round disc for frequent use. Its non-woven construction noticeably reduces vibration, making work more comfortable and precise.
For anyone looking for a complete system, the is an excellent choice. The cordless angle grinder offers maximum flexibility, and the included cutting disc delivers good basic performance.
Anyone who already owns an 18V system will find a powerful tool in the , which is ideal for combining with high-quality cutting discs.
Warning: Never use damaged or bent cutting discs. Check the disc for cracks or chips before every use. A disc breaking during operation can cause extremely serious injuries.
Trends and new products in 2026
The market is constantly evolving. We are currently seeing a trend towards more durable special coatings that reduce material build-up on the disc body.
With diamond discs, thinner cuts are becoming increasingly popular because they mean less material loss and require less force. Sustainability is also becoming more important, for example through longer-lasting discs and more recyclable composite materials.
Safety is essential when cutting
Using cutting discs requires the utmost care. Always wear safety goggles, hearing protection, gloves and close-fitting clothing. Make sure the workpiece is securely clamped.
Always adjust the protective guard so that it is positioned between you and the disc and deflects sparks. Only start the tool once the disc is spinning freely and is not touching the material.
The right protective clothing
- Safety goggles with side protection or, preferably, a face shield.
- Hearing protection (ear defenders).
- Durable work gloves.
- Fire-resistant workwear made from sturdy material.
- Sturdy footwear.
Note: Never forgo protective clothing, even when carrying out short tasks. A single spark or fragment of abrasive grain can endanger your eyesight.
Care and storage
Store cutting discs in a dry, flat place protected from direct sunlight. Moisture can soften the bond in resin-bonded discs and reduce their strength.
Remove dust and deposits from the discs after use. Blocked segments on diamond discs can be cleared again with a diamond disc dresser. Store the discs in their original packaging or a special disc case to prevent damage.
Conclusion: choosing the right disc
There is no perfect cutting disc, but there is an ideal one for your particular task. Do not base your decision solely on apparent price advantages; consider material compatibility, safety and the expected level of use.
For universal use on metals, high-quality non-woven abrasive discs such as the are an excellent choice. If you want to eliminate cables altogether, cordless systems such as the offer a powerful solution. Invest in high-quality cutting discs from our comparison – they not only make your work safer and faster, but also more economical in the long run.
Browse our extensive range of tools to find the right disc for your project.
Frequently Asked Questions
- How can I recognise a good cutting disc for metal?
- Look for the material specification and safety standard (e.g. EN 12413). A good metal cutting disc has a fine-grained, evenly distributed abrasive structure and a stable backing material that dampens vibrations. Avoid outdated discs and check the maximum speed rating.
- Can I also use a diamond cutting disc for metal?
- No, this is not recommended. Diamond discs are designed for hard, brittle materials such as concrete, tiles or natural stone. When used on metal, they would quickly become blunt, overheat and could break dangerously. Always use discs specifically marked for metal.
- Which disc size fits my angle grinder?
- The maximum disc size is stated on your tool's rating plate; common sizes are 115 mm, 125 mm and 230 mm. Never use a disc larger than permitted. The disc bore must also match the mounting flange; use adapters with caution.
- How often should I replace a cutting disc?
- Replace the disc immediately if you notice visible damage such as cracks, chips or burn marks. A significant decline in cutting performance or excessive grinding is also a sign of wear. Flap discs for drills wear out more quickly and should be replaced when the individual flaps become worn.
- What does the speed rating on a cutting disc mean?
- The maximum speed printed on the disc in rpm must not be exceeded. It ensures the disc's safety at the specified peripheral speed. Make sure this figure is higher than the maximum speed of your angle grinder to ensure safe operation.