Diamond drill bit DeWalt DT6040 8 mm for ceramic

DeWalt DT6040 8 mm diamond drill bit is designed for precise drilling in ceramic materials. The diamond-cut tip provides controlled cutting action and increased wear resistance when making holes in tiles, sanitary ceramics and porcelain. The bit is intended for use with rotary drills or drill drivers at recommended speeds and is suitable for work such as installations, repairs and tile fitting.

Advantages

The diamond-cut tip delivers accurate hole positioning and consistent cutting performance on hard brittle surfaces. Hard-wearing diamond grit at the cutting edge extends tool life compared with standard carbide bits when used on glazed tiles and porcelain. The slender 8 mm diameter allows for neat, small-diameter holes needed for fixtures and fittings while minimising crack risk when correct technique and speeds are used.

Suitable for

• Drilling holes in ceramic wall and floor tiles
• Creating openings in sanitary ceramics (sinks, cisterns)
• Porcelain and glazed tile installations and repairs
• Fixtures and fittings where small-diameter precise holes are required

Key specifications

• Tip type: diamond-cut tip with diamond grit for cutting hard brittle materials
• Diameter: 8 mm suitable for small-diameter holes
• Material compatibility: ceramic, glazed tile, porcelain, sanitary ceramics
• Tool compatibility: rotary drills and drill drivers
• Typical application: wet or dry drilling at manufacturer-recommended speeds to reduce heat and prolong life

How to use

Secure the workpiece and mark the drilling position. Use a rotary drill or drill driver with steady, even pressure and maintain the recommended speed for ceramic drilling to avoid overheating. For best results start at a low speed or use a small pilot mark, then increase speed gradually. Apply coolant or water when permissible to reduce heat and remove debris, especially during prolonged drilling. After completing the hole, clean the bit and inspect the cutting edge for wear before storing.

Usage recommendations

Use protective eyewear and gloves, clamp tiles securely to prevent movement, and avoid excessive axial force to reduce the risk of chipping. When drilling porcelain or highly glazed surfaces, start slowly and consider intermittent drilling with cooling to extend bit life.