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3-piece Robust Line diamond drill bit set, diameters 6 mm, 8 mm and 10 mm. Designed for precision drilling in hard materials such as ceramic and tile, the set includes three diamond-tipped core bits suitable for dry drilling. The drill bits are built for durability and accurate hole formation, compatible with standard rotary tools that accept core drill bits of these diameters.

Advantages

The Robust Line diamond tips provide clean cuts in ceramic and similar brittle materials while maintaining long service life. The set covers common hole sizes (6/8/10 mm), reducing the need to change tools for typical installation tasks. Dry drilling capability allows use without water cooling where wet methods are impractical.

Suitable for

Key specifications

How to use

Mark the drilling position and secure the workpiece. Fit the appropriate diameter drill bit into a compatible rotary tool or drill with correct chuck and set a low to medium speed. Start drilling with light pressure to create a pilot groove, then maintain steady, even pressure. For cleaner results, periodically withdraw the bit to remove dust. Follow the drill manufacturer's guidance for maximum RPM and safety precautions.

Recommendations

For best results on ceramic, use a steady hand and low speed; avoid excessive lateral pressure to prevent chipping. If prolonged drilling is required, consider intermittent breaks to avoid overheating when dry drilling.