Diamond cutting discs for dry cutting and wet cutting

Diamond Cutting Discs for Tilers and Tradespeople – Available at the Karl Dahm Online Shop

Precision, durability, and maximum efficiency – diamond cutting discs are essential tools in the daily work of professional tilers and tradespeople. At the Karl Dahm Online Shop, you’ll find a comprehensive range of diamond tools for various applications that simplify your work and deliver perfect cutting results. Whether you’re wet cutting, dry cutting, grinding, or polishing – our diamond tools are designed to meet the highest demands. With decades of experience in the tiling trade, we understand what matters most on-site: reliability, precision, and efficiency.

Diamond Cutting Discs for Wet Cutting: Clean Cooling and Accurate Cuts

Wet cutting discs provide continuous water cooling, which extends the disc’s lifespan and allows for virtually dust-free operation. They reduce friction, prevent cracking in sensitive materials, and ensure exceptionally smooth, chip-free edges. For premium materials like marble or granite, controlled and cool cutting is essential to avoid damage and reduce the need for rework.

Typical applications:

• Porcelain stoneware

• Natural stone

• Hard stone

• Granite

Recommended products:

DNS 13 Terr Ultra:

• Ø 250 mm (Art. No. 50 044)

• Ø 300 mm (Art. No. 50 088)

• Ø 350 mm (Art. No. 50 062)

DNS 14:

• Ø 200 mm (Art. No. 50 541)

• Ø 250 mm (Art. No. 50 542)

DNS 15:

• Ø 200 mm (Art. No. 50 543)

• Ø 250 mm (Art. No. 50 544)

• Ø 300 mm (Art. No. 50 545)

Advantages of wet cutting:

• Significantly reduced dust exposure on site

• Cooling increases disc lifespan

• Clean edges in delicate tile materials

• Safer working thanks to lower friction and heat development

• Faster cutting with less wear

Diamond Cutting Discs for Dry Cutting: Fast and Flexible

Dry cutting discs are ideal when water supply is unavailable. Especially useful for mobile jobs or interior work, they offer maximum flexibility. Compatible with angle grinders, they are perfect for small-scale tasks, repairs, or on-site cutting. Despite the lack of water cooling, modern segment designs deliver excellent performance and durability.

Typical applications:

• Ceramic tiles

• Porcelain stoneware

• Wall and floor tiles

• Construction ceramics and brick

Recommended products:

DTS 8 Speed:

• Ø 115 mm (Art. No. 50 250)

• Ø 125 mm (Art. No. 50 251)

• Ø 180 mm (Art. No. 50 253)

DTS 9 Top-Cut:

• Ø 115 mm (Art. No. 50 295)

• Ø 125 mm (Art. No. 50 296)

• Ø 125 mm M14 (Art. No. 50 369)

DTS 10 Turbo:

• Ø 115 mm (Art. No. 50 260)

• Ø 125 mm (Art. No. 50 261)

Advantages of dry cutting:

• No need for a water connection

• Quick setup, even on mobile sites

• Versatile use for smaller jobs or touch-ups

• Good cooling via turbo or segmented designs

• Ideal for indoor work or hard-to-reach areas

Diamond Grinding Discs: Smoothing, Shaping, Finishing

Diamond grinding discs complement cutting discs perfectly, providing fine shaping and material adjustments. Where cutting ends, grinding begins – for a precise fit and clean visual edges. They’re essential for tasks like correcting floor tile placement or refining socket cutouts.

Typical uses:

• Edge finishing

• Porcelain and natural stone work

• Smoothing of cut edges

• Bevelling tile edges

Recommended products:

• Segmented Diamond Grinding Disc 125 mm (Art. No. 50621)

• Turbo Diamond Grinding Disc 125 mm (Art. No. 50622)

Your benefits:

• Precise surface processing

• Fine material removal without chipping

• Accurate fitting with minimal effort

• Enhanced tile aesthetics

Diamond Grinding Cups: High-Performance Material Removal

Diamond grinding cups are designed for rough surface treatment. They offer excellent durability, high grinding power, and efficient material removal – ideal for substrate preparation or heavy-duty grinding tasks. In renovations, levelling work, or removing old tile adhesive, they prove invaluable.

Typical applications:

• Concrete grinding

• Screed and natural stone processing

• Removal of adhesive residues

• Grinding screed edges and high spots

Top products:

• Turbo Grinding Cup 125 mm (Art. No. 50630)

• Double Row Grinding Cup 125 mm (Art. No. 50631)

Advantages:

• High grinding capacity for tough jobs

• Sturdy construction for long-term use

• Efficient on large surfaces

• Good dust extraction when used with vacuum systems

• Fast removal of problem areas on-site

Why Choose Karl Dahm Diamond Tools?

For over 65 years, Karl Dahm has been synonymous with quality, innovation, and practical solutions in the tiling trade. Our diamond cutting and grinding tools are designed by professionals, for professionals – made from carefully selected materials, built with expert technical knowledge, and refined with practical features to support your daily work.

What sets us apart:

• Immediate availability of most products

• Thoroughly tested and proven in the field

• Expert advice and technical documentation

• Personal support from experienced product specialists

Service Tip: Our expert advisors are happy to help you select the right cutting or grinding disc – via phone or email.

FAQ Diamond Cutting Discs & Diamond Grinding Discs – Expert Guide for Selection and Application

When is wet cutting recommended?

Wet cutting is ideal for hard or sensitive materials such as natural stone or porcelain stoneware because water prevents overheating and reduces dust.

Wet cutting is particularly recommended when working with very hard or delicate materials like granite, marble or porcelain stoneware. The continuous water flow cools both the diamond segments and the material, preventing overheating and cracks. This results in clean, precise cuts, extends the lifespan of the diamond blade and significantly reduces dust generation, which also improves workplace safety.

Can I use a wet cutting blade for dry cutting?

No. Wet cutting blades require water for cooling and must not be used dry.

Wet cutting blades are designed to operate with water to keep the temperature and friction low while cutting. If they are used without water, the blade may overheat, warp, lose segments, or even break. This can lead to dangerous situations and may damage the workpiece. Therefore, wet cutting blades should only be used with water.

How can I tell if a diamond cutting disc is worn out?

Reduced cutting performance, increased sparks, or uneven cutting edges indicate wear.

A diamond cutting disc shows signs of wear when the cutting speed decreases, when more pressure is required, or when excessive sparks appear during cutting. Uneven cut quality or noticeable wear on the diamond segments are also signs of deterioration. If the blade remains dull even after cleaning or dressing, it should be replaced to ensure safety and clean results.

Why are there different segment types on diamond blades?

The segment design affects cooling, dust removal, and cutting quality.

Diamond blades use different segment shapes because various materials require specific cutting characteristics. Turbo or wave segments provide improved cooling and dust removal, making them suitable for dry cutting. Continuous rim blades offer extremely clean cuts on delicate surfaces like tiles. The segment type directly influences cutting speed, finish quality, and blade durability.

Which blade is best for porcelain stoneware?

Use high-hardness diamond blades like the DNS 14 or DTS 10.

Porcelain stoneware is extremely dense and hard, which means it requires specially designed diamond blades with fine segments. Recommended options include the DNS 14 (Art. No. 50 541/542) and DTS 10 (Art. No. 50 260/261). These blades ensure clean, chip-free cuts and long service life even under continuous use.

Are diamond grinding discs suitable for tile edge finishing?

Yes. Fine turbo grinding discs are perfect for smoothing and finishing tile edges.

Diamond grinding discs are excellent for refining tile or porcelain stoneware edges, removing sharp edges, or adjusting fit. Fine turbo grinding discs produce smooth results without damaging the material, making them ideal for visible edges, transitions, and repair work.

How long does a diamond blade last?

Service life varies, but high-quality blades can reach several hundred cutting meters with proper use.

The durability of a diamond blade depends on material hardness, cutting technique, cooling, and correct blade selection. Proper use, correct machine speed, and regular cleaning can significantly extend the blade’s lifespan. When used correctly, quality diamond blades can easily last for several hundred meters of cutting distance.

How do I grind screed or concrete effectively?

A robust grinding cup like the Double-Row Grinding Cup 125 mm (Art. No. 50631) is recommended.

To effectively grind concrete or screed, a powerful grinding cup should be used. The Double-Row Grinding Cup 125 mm (Art. No. 50631) offers high material removal rates and durability. It is ideal for leveling surfaces, removing residues, or preparing base layers for further treatment.

What is the difference between a grinding disc and a grinding cup wheel?

Grinding discs are used for fine work; cup wheels are used for heavy material removal.

Diamond grinding discs are suited for finer surface work such as smoothing, shaping, or edge finishing. Grinding cup wheels, on the other hand, are designed for heavy-duty material removal due to their larger surface contact area and robust design. They are ideal for concrete, screed, and other tough building materials.

How can I reduce dust when dry cutting?

Use dust extraction or switch to wet cutting.

Dry cutting always produces dust. To minimize exposure, a vacuum extraction system should be used, or at least a certified dust protection mask. If dust control is critical due to the environment or material sensitivity, switching to wet cutting is the best option, as it drastically reduces dust formation.

Trust in Karl Dahm’s quality and experience – for precision work and satisfied clients!