Tile diamond drill bit Irwin 10507892, 5 mm, for all tiles

Irwin diamond tile drill bit 5 mm is designed for creating precise, clean holes in ceramic, porcelain, glass and natural stone tiles. The compact 5 mm cutting diameter and diamond-grit tip ensure accurate starts and smooth cutting, making the bit suitable for fittings, plumbing and electrical pass-throughs during tiling or renovation work. Compatible with standard drill chucks, the bit supports both wet and dry drilling methods depending on tile type and working conditions.

Advantages

The diamond-grit tip delivers high cutting precision and reduced chipping around the hole edge, while the compact 5 mm diameter allows for small-diameter penetrations needed for screws, dowels and cable passages. The bit is built for consistent hole shapes and straightness, offering reliable performance across different tile hardness levels. Its simple shank design fits common drill chucks, enabling quick mounting and removal for both handheld and drill-press use.

Suitable for

• Drilling holes for fixtures and fittings in ceramic tiles
• Creating passages for plumbing pipes and water lines through tiles
• Making small-diameter cable and conduit entries for electrical installations
• Working with porcelain, glazed tiles, glass tiles and some natural stone tiles

Key specifications

• Cutting diameter: 5 mm
• Tip type: diamond-grit / diamond-coated
• Suitable materials: ceramic, porcelain, glass, selected natural stone tiles
• Drilling mode: wet and dry (depending on tile and application)
• Shank: standard straight shank for compatibility with common drill chucks

How to use

Mark the drilling point on the tile and secure the tile or workpiece to prevent movement. Start drilling at low speed to establish a stable entry point, using light pressure to avoid cracking. For glazed or brittle tiles, use a small amount of water to cool and lubricate the cutting area or switch to continuous wet drilling where appropriate. Increase speed gradually once the tip has established a groove, and keep pressure steady until the hole is complete. Clean the bit and hole after drilling to remove debris.

Usage recommendations

Use low to medium drill speed and moderate pressure for best results; apply water for cooling when working with harder or glazed tiles. For thin or fragile tiles place a backing support or tape over the drilling point to reduce chipping. Inspect the bit for wear before use and replace if diamond grit is significantly worn to maintain clean, accurate holes.