High-performance wet drill bit Ø 22 mm - Precision and performance for tiles & natural stone
The High-performance wet drill bit Bohrmeister Ø 22 mm from KARL DAHM stands for clean, controlled drilling in particularly demanding materials such as tiles, natural stone and porcelain stoneware. Thanks to the high-quality diamond segment, it enables precise cuts with a significantly reduced risk of chipping – ideal for professional results without cracks or material damage.
This High-performance wet drill bit was specially developed for use with water supply, minimizing heat build-up and significantly extending the service life of the bit.
High-performance wet drill bit Ø 22 mm – Your advantages
- Maximum drilling depth: 35 mm
- Connections: 1/2" external thread and 1/2" thread for flushing sleeve – suitable for many common drilling systems
- Flexible use: Suitable for drill stands, handheld drilling machines, cordless drills with water flushing head, as well as angle grinders with water supply
- Segment height: 7.5 mm ring segment for long service life and fast, efficient material removal
- Precise work: Accurate drilling also possible near edges
The High-performance wet drill bit ensures controlled drilling even in hard and sensitive surfaces.
Bohrmeister diamond drill bits – Additional diameters available
In addition to the Ø 22 mm version, further sizes are available to cover a wide range of requirements:
Recommended addition to our High-performance wet drill bits: Drill stand KDB-200
For maximum precision, especially with difficult materials, the combination with the KARL DAHM drill stand KDB (art.-no. 40107) is recommended. In combination with the Bohrmeister NBK Ø 22 mm, it enables low-vibration, precisely guided drilling and significantly reduces the risk of material damage.
Application tip: Extend service life through regular sharpening
Maintain your High-performance wet drill bit with the KARL DAHM diamond sharpening stone (art.-no. 20050). Regular sharpening keeps the diamonds exposed, improves cutting speed and noticeably extends service life.
FAQ about the High-performance wet drill bit Ø 22 mm
Which materials is the High-performance wet drill bit suitable for?
It is ideal for tiles, porcelain stoneware, ceramic slabs, as well as natural stone such as marble or granite.
It is ideal for tiles, porcelain stoneware, ceramic slabs, and natural stone such as marble or granite. In addition, it is particularly suitable for hard, dense and sensitive surfaces where clean drilling without chipping or cracks is essential. Thanks to the high-quality diamond segment, even high-fired tiles and highly resistant porcelain stoneware can be drilled precisely.
Why should water cooling be used?
Water cooling reduces heat, prevents premature wear of the diamond segments and ensures clean cuts without stress cracks.
Water cooling reduces the heat generated during drilling, protects the diamond segments from overheating and therefore prevents premature wear. At the same time, the water binds the resulting drilling slurry and dust, keeping the cutting area clean so the diamonds can work effectively. The result is smoother drilling, more precise edges and a significantly lower risk of stress cracks or chipping – especially in hard and sensitive materials such as porcelain stoneware or natural stone.
Can I drill close to the edge without the material chipping?
Yes, the high-quality diamond segment enables controlled, low-chipping drilling even close to edges.
Yes, the high-quality diamond segment enables controlled, low-chipping drilling even near edges. The precise segment design and uniform material removal reduce pressure on the surface, significantly minimizing the risk of spalling. Combined with wet cooling, the drilling process remains smooth and controllable, allowing clean results even close to the edge on sensitive tiles or natural stone.
What ensures the long service life?
The 7.5 mm high ring segment and the quality of the diamond bond ensure uniform wear and long service life.
The high ring segment ensures that the diamonds are exposed evenly and stay continuously sharp instead of becoming dull too early. Wear is controlled and uniform, keeping the drill bit powerful over a long period of time.
When should the High-performance wet drill bit be resharpened?
When drilling performance decreases or drilling takes noticeably longer than usual. A short resharpening with a diamond sharpening stone restores cutting performance.
The High-performance wet drill bit should be resharpened as soon as drilling performance noticeably decreases or the drilling process takes significantly longer than usual. Increased pressure requirements or an uneven run can also indicate that the diamonds are no longer optimally exposed. A short resharpening with a suitable diamond sharpening stone exposes the bonded diamonds again, so the bit regains its original cutting performance and continues to work efficiently while protecting the material.
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