The new MATRIXTEC diamond core bits convince with longest tool life and excellent drilling results in the hardest materials

MATRIXTEC Dry Diamond Core Bits for Hardest Materials – Karl Dahm Online Shop

MATRIXTEC dry diamond core bits represent the most advanced solution for tilers and tradespeople who need to drill into the hardest materials such as porcelain stoneware, natural stone or ceramic – entirely without external water cooling. With innovative matrix technology, superior heat resistance and high cutting performance, these dry core bits set new standards in terms of efficiency, durability and cut quality.

Technological Edge with MATRIXTEC Coating

What makes the MATRIXTEC series stand out is its angled diamond structure embedded within a specially engineered matrix. This design ensures even diamond distribution, excellent air-based cooling and rapid drilling progress, even through high-density porcelain tiles. The open structure facilitates optimal removal of drilling debris and prevents clogging of the cutting edge.

Key benefits at a glance:

• Dry drilling without water – always ready for use

• Extended service life thanks to a wear-resistant matrix coating

• Clean results in the toughest tile materials

• Standard M14 connection – fits all common angle grinders

• Available in diameters from 6 mm to 130 mm

Site Challenges Solved by MATRIXTEC

When drilling into modern porcelain slabs, polished surfaces or large-format tiles, conventional core bits quickly reach their limits. Excessive heat, material cracks, breakout damage and tool wear are common issues. MATRIXTEC addresses these challenges effectively:

• Paraffin cooling (for smaller diameters) stabilises temperature during drilling

• Open segment design supports efficient debris clearance

• Durable matrix layer preserves the tool and the tile surface

Especially in mobile or time-sensitive jobs, not needing a water source or cooling system is a major advantage. It saves time, effort and significantly reduces mess on-site.

Application Areas: Precision Without Water

MATRIXTEC dry diamond bits are perfect for interior fit-outs, refurbishments and installations in areas without water access or when working with sensitive surfaces. Common uses include:

• Socket drill holes in wall tiles (e.g. Ø 68 mm, item no. 50 825)

• Pipe and cable penetrations

• Mounting holes for bathroom and kitchen fixtures

• Anchor or plug holes for shelves, hooks, brackets

• Precision holes with cordless angle grinders (e.g. M5 variant)

Thanks to their strong cutting action and dry cooling ability, they are also ideal for large-format tiles and composite materials.

FAQ – Everything You Need to Know About MATRIXTEC Dry Core Drill Bits

What distinguishes MATRIXTEC core drill bits from conventional dry drilling tools?

MATRIXTEC core drill bits feature an innovative matrix structure with diagonally embedded diamonds, delivering higher efficiency, longer durability and cleaner drilling results.

MATRIXTEC dry core drill bits differ significantly from traditional dry drilling tools due to their advanced matrix structure, where diamonds are embedded at a diagonal angle. This ensures controlled heat distribution, reduced wear and excellent drilling stability. The result is longer tool life, cleaner cuts and fewer tool changes. Professionals benefit from increased efficiency, cost savings and consistently high-quality drilling performance across various materials.

Can MATRIXTEC core drill bits be used dry?

Yes, MATRIXTEC drill bits are specifically designed for dry drilling and typically do not require external water cooling.

Yes, MATRIXTEC core drill bits are optimized for dry use. Thanks to their smart diamond segment design and paraffin-based self-cooling (for smaller diameters), wet cooling is not necessary. This makes them ideal for installation work in occupied spaces, renovation jobs or areas where water use is impractical or undesirable. MATRIXTEC ensures precise, safe, and clean drilling even under restricted site conditions.

Which machines are MATRIXTEC drill bits compatible with?

MATRIXTEC drill bits fit any angle grinder with an M14 mount and can also be adapted for cordless drills.

MATRIXTEC dry core drill bits come with a standardized M14 connection, allowing them to be used on almost any conventional angle grinder. With suitable adapters, they can also be mounted on cordless drills, screwdrivers, or quick-release systems. They perform especially well when paired with compact, high-speed cordless angle grinders—ideal for mobile and on-site work.

How deep can you drill with MATRIXTEC?

Depending on the model, typical drilling depth ranges from 35 to 60 mm.

MATRIXTEC core drill bits generally allow drilling depths between 35 and 60 mm, depending on diameter and model. For very thick materials or through-holes, drilling from both sides is recommended to reduce wear and achieve clean, precise edges. The high-performance diamond matrix enables smooth drilling even on delicate surfaces with minimal chipping.

Which diameters are available?

Available in sizes from 6 mm to 130 mm; special diameters can be produced upon request.

The MATRIXTEC product range offers drill diameters from 6 mm for small precise holes up to 130 mm for socket and pipe installations. This makes the range suitable for plumbers, electricians, tilers and general construction professionals. Custom diameters can also be supplied upon request through customer support.

What should I keep in mind while drilling?

Use light pressure, begin at a slight angle and employ a gentle wobbling motion while drilling.

For best drilling performance, begin by positioning the drill bit at a slight angle to the surface, then move into the material with a controlled wobbling motion. Apply only light to moderate pressure—excessive force can reduce tool life and cause surface damage. For smooth or sensitive surfaces, a drilling guide is recommended to avoid slipping.

When should the drill bit be sharpened?

Sharpen when drilling performance drops or sparks appear, using a diamond sharpening stone.

If drilling progress slows, sparks occur or the cut becomes uneven, the diamonds in the matrix may be covered by material residue. Sharpening the drill bit with a diamond sharpening stone (e.g., Art.-No. 20050) exposes fresh diamond edges, restoring efficiency. Regular sharpening at the first signs of performance loss maximizes tool lifespan.

How long does a MATRIXTEC drill bit last?

MATRIXTEC drill bits last significantly longer than standard dry core bits when used correctly.

MATRIXTEC core drill bits offer superior durability compared to traditional dry drilling tools. Depending on material and technique, dozens of holes can be drilled without significant performance reduction. Proper usage and occasional sharpening significantly extend service life, making MATRIXTEC a highly cost-effective professional solution.

Are there sets for frequent users?

Yes, sets 50839, 50840 and 50841 offer popular diameter combinations in a rugged transport case.

For professionals, MATRIXTEC provides practical multi-size sets containing the most commonly used diameters. The sets 50839, 50840 and 50841 come in a sturdy transport box with protective inserts, ensuring organized, ready-to-use tools on the job site. Users benefit from convenience, durability and cost savings compared to purchasing drill bits individually.

How should I store MATRIXTEC drill bits?

Store them dry, clean and ideally in the original case.

For optimal longevity, MATRIXTEC core drill bits should be stored in a dry environment and kept separate from other tools to prevent segment damage. The original transport case with foam inserts provides ideal protection. After use, clean off drilling dust to maintain cutting performance. Avoid extreme heat or direct sunlight during long-term storage.

MATRIXTEC dry diamond core bits – the professional choice for clean, fast and safe drilling in the hardest materials. Exclusive to Karl Dahm.