The Vitrex Self-Adhesive Diamond Tile Drill Kits offer both the necessary lubrication to extend the life of the drill bit and secure positioning for quick and accurate drilling. Uses self adhesive pads for secure positioning and includes water delivery and collection cups for clean drilling. Use when installing wall fixings through tiles in kitchens and bathrooms, for a wide range of fixtures such as shelves, towel rails or copper pipe.The Vitrex 102771 Self-Adhesive Diamond Tile Drill Kit. Bit Size: 8mm.Additional Information:• Diameter (mm): 8