Bihui 28mm M14 Vacuum Brazed Diamond Drill Bit / Hole Saw traditional-taps The Alpi Graffito collection is

The Alpi Graffito collection is specialised for creating a stylish and welcoming atmosphere

drip-free operation and effortless single-lever control over water temperature and flow

Effective on tiles

Concealed Cistern Use: Ideal for installations with concealed cisterns

Bihui 28mm M14 Vacuum Brazed Diamond Drill Bit / Hole Saw traditional-taps The Alpi Graffito collection isThe Bihui 28mm M14 Vacuum Brazed Diamond Drill Bit is a professional grade, high speed rotary core saw engineered specifically for dry drilling through the densest architectural materials. Measuring 28mm in diameter, this heavy duty bit is highly recommended for creating clean holes for plumbing lines, waste pipes, electrical conduits, and robust mechanical fixings across all types of ceramic tiles, especially modern porcelain. Prioritised by