Tile, Glass & Diamond Drill Bits
Drilling through tile, glass or hard ceramics? These specialist bits cut cleanly through fragile surfaces without cracking or slipping – ideal for kitchens, bathrooms and tiled walls.
Who Uses Tile, Glass & Diamond Bits?
These bits are trusted by installers who need clean, accurate holes in hard or brittle materials:
- Bathroom Fitters – Drill tiles without cracking to mount taps, brackets or screens.
- Kitchen Installers – Fix splashbacks, sockets or shelving to tiled or glass areas.
- Maintenance Crews – Handle ad-hoc repairs and tile fixes on site.
- Electricians & Plumbers – Run cable or pipe through tile and porcelain with precision.
These Bits Are Great for Jobs Such As:
- Installing wall plugs into ceramic tiles
- Running copper pipe through tiled bathrooms
- Fixing shaver sockets or towel rails onto splashback zones
- Mounting shower screens or brackets to tiled walls
- Cutting vent holes through glass or glazed brick
How to Choose the Right Drill Bit for Tiles & Glass
When working with brittle materials, bit choice is critical. Here’s what to watch for:
1. Bit Type
Diamond-tipped: Clean and fast on porcelain, ceramic or stone.
Spear-point: Good for ceramic wall tile and glass – slow speed only.
2. Cooling Requirements
Use water or gel to cool the bit and avoid overheating or glazing over during the cut.
3. Diameter Range
Pick common sizes like 6mm or 8mm for plugs, or 10mm+ for pipe sleeves and fixings.
Recommended Accessories for Glass & Tile Drilling
Avoid slips, cracks or overheating with these accessories:
1. Drill Guide Jigs
Keep bits steady and aligned on glazed surfaces.
2. Cooling Gel Pads
Control temperature and dust while extending bit life.
3. Masking Tape
Mark centres and reduce surface slip or chip when starting a hole.
Frequently Asked Questions
Can I use a hammer drill on tile?
No – always drill on rotary only. Hammer will crack or shatter tile or glass immediately.
What speed should I drill glass or tile at?
Low speed, high control. Let the bit grind through – don’t force. Cooling helps reduce cracks or blowouts.
Do I need special bits for porcelain?
Yes – diamond grit or electroplated bits work best. Porcelain is harder and denser than standard ceramic tile.
Can I drill a hole in a mirror?
Yes, but take extreme care. Use a tile/glass bit with low pressure, masking tape, and constant cooling.
How long do diamond bits last?
Depends on material and use – usually 10–20 holes per bit in porcelain. Use water or gel to extend lifespan.
