This 4.00mm drill bit delivers precision performance for tile and glass drilling applications. Engineered for clean, accurate holes in delicate surfaces, it requires low-speed operation with moderate pressure and continuous water cooling to prevent heat damage and chipping. Apply masking tape to glazed finishes to reduce bit wandering, and never use hammer action mode as impact forces cause fracturing. Once through the tile or glass, transition to an appropriate bit for the substrate beneath. Essential for professional installations and renovation projects demanding flawless results.
