Diamond-tipped Core Drill Bit Drel CON-AOD-2308, 8 mm, soldered diamond grit, M14 shank

Diamond-tipped Core Drill Bit Drel CON-AOD-2308, 8 mm, soldered diamond grit, M14 shank is a precision cutting tool designed for creating clean, small-diameter holes in hard and brittle materials. The 8 mm diamond-coated core is soldered to ensure consistent abrasive contact and the M14 threaded shank provides secure mounting to angle grinders and compatible rotary tools. This bit is intended for wet or dry drilling in ceramics, porcelain tiles, glass and similar surfaces where a fine, rounded hole is required.

Advantages

The soldered diamond grit on the cutting edge offers durable wear resistance and consistent cutting performance across the working surface. The 8 mm diameter gives accurate, narrow holes while the M14 shank ensures stable attachment and easy changeover between compatible machines. The design supports both wet and dry operation, allowing selection of the appropriate drilling method depending on material and job conditions.

Suitable for

• Drilling holes in ceramic and porcelain tiles
• Creating openings in glass and mirror surfaces (with appropriate support)
• Precision small-diameter holes for plumbing fixtures and tile anchors
• Professional tiling and DIY renovation projects

Key specifications

• Cutting diameter: 8 mm
• Abrasive type: soldered diamond grit
• Shank type: threaded M14
• Recommended drilling modes: wet and dry
• Typical applications: ceramics, tiles, glass and similar brittle materials

How to use

Secure the Drel CON-AOD-2308 into an angle grinder or rotary tool with an M14 spindle and ensure the tool is powered off while mounting. For wet drilling, provide a steady water feed to the drilling area to reduce heat and prolong the diamond edge life; for dry drilling, use intermittent operation and light pressure to avoid overheating. Start at low speed to establish the hole center, then apply moderate, even pressure while maintaining tool stability. After completing the hole, withdraw the bit while the tool is still rotating to avoid chipping the material.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, gloves and hearing protection. For glass and mirrors, support the workpiece and consider using a backing material to reduce break-out. Inspect the bit before use for even diamond coverage and replace when cutting performance declines. Follow the angle grinder or rotary tool manufacturer's guidance for speeds and safety limits.