Drill bit set RUBI 51929 6 pc Diamond drill bits 6.8 cm

The RUBI 51929 6 pc Diamond drill bits 6.8 cm set contains six diamond-tipped core bits designed for clean, controlled drilling in hard surfaces. These drill bits are intended for tasks that require precise circular holes with minimal chipping, delivering consistent performance for both professional tradespeople and home users working on tile, porcelain, ceramics, glass and similar materials. The set is supplied with bits of identical diameter, each engineered to balance cutting speed and wear resistance for repeated use.

Advantages

Diamond cutting edges provide high abrasion resistance and long service life compared with conventional carbide bits. The core design facilitates effective material removal while reducing stress on the workpiece, and the uniform 6.8 cm diameter enables repeatable hole sizes without frequent tool changes. These bits are compatible with standard holders and are suitable for wet drilling methods that extend bit life and improve hole quality.

Suitable for

• Drilling circular holes in ceramic and porcelain tiles
• Cutting through glass and glazed surfaces
• Creating openings for plumbing fixtures and electrical boxes in tiled walls
• Work requiring repeatable, clean hole diameters of 6.8 cm
• Wet drilling applications to minimise dust and overheating

Key specifications

• Quantity: 6 diamond core drill bits
• Cutting diameter: 6.8 cm
• Tip material: diamond grit sintered to the cutting edge
• Suitable drilling method: wet drilling recommended
• Compatible with standard rotary drills and drill stands using appropriate adapters
• Intended materials: ceramic, porcelain, glazed tile, glass and similar hard brittle materials

How to use

Mark the required hole position and secure the workpiece to prevent movement. Use a low to medium drill speed and start with light pressure to establish the cutting contact. Wet drilling is recommended: provide a continuous water supply to the drilling area to cool the diamond edge and remove debris. Maintain steady, moderate pressure and avoid forcing the bit; allow the diamond edge to cut at its designed speed. After finishing, clean the bits and store them dry to prevent damage.

Usage recommendations

For best results, use these diamond drill bits with a drill stand or guide to ensure perpendicular alignment, and employ wet drilling to reduce heat build-up and extend tool life. Always wear appropriate eye and hand protection and follow manufacturer instructions for adapters and drill speed ranges when working with fragile materials.