Drill bit for glass and ceramics GEKO HEX 8 mm

GEKO HEX 8 mm drill bit is designed for precision drilling in glass and ceramic materials. With an 8 mm cutting diameter and a HEX shank, the bit provides stable engagement with compatible chucks and bit holders. It is intended for making clean holes in fragile surfaces such as tiles, glass panels and sanitary ceramics without excessive chipping when used with appropriate technique and correct drill speed.

Advantages

The HEX shank ensures secure grip and reduces slippage in quick-change chucks and bit holders. The 8 mm cutting diameter delivers a predictable hole size for fixture installation and plumbing passthroughs. The tip geometry and material are optimized for brittle substrates, helping to minimise cracking and chipping when used with low speed and light pressure. The compact form factor is compatible with hand drills and drill drivers that accept HEX shanks.

Suitable for

• Drilling holes in ceramic wall and floor tiles for fixtures and anchors
• Making openings in glass panels for fittings and trim
• Creating holes in sanitary ceramics such as sinks and toilet tanks (with care)
• Light repair and installation tasks involving brittle materials

Key specifications

• Cutting diameter: 8 mm
• Shank type: HEX
• Primary application: glass and ceramic materials
• Compatibility: handheld drills and drivers with HEX-compatible chucks or bit holders
• Intended use: precision, low-speed drilling in brittle substrates

How to use

Mark the drilling point and secure the workpiece to prevent movement. Start with a slow drill speed and apply light, steady pressure to avoid cracking the material. If drilling glass or tile, consider using lubrication (water) to reduce heat and remove debris. Use a guide or tape over the drilling area to help prevent the bit from wandering when beginning the hole. Increase pressure gradually only after a visible score or pilot has formed and maintain low to moderate speed throughout the operation. After completing the hole, clean the edges gently to remove any residual particles.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses and gloves, clamp the workpiece, and avoid high speeds or heavy pressure that can cause breakage. For best results on tiles and glass, use water as coolant and support the material close to the drilling point.