The Vitrex 10 2772 Diamond Tile Drill Bits and Water-Cooling Self Adhesive Kit System offers both the necessary lubrication to extend the life of the drill bit and secure positioning for quick and accurate drilling.This system uses self-adhesive pads for secure positioning and provides the necessary lubrication to extend the life of the drill and cool the drilling surface, includes water delivery and collection cups for clean drilling. Use this system when installing wall fixings through tiles in kitchens and bathrooms. For a wide range of fixtures such as shelves, towel rails or copper pipe. 1 x Drill Guide.1 x Diamond Drill.1 x Set of Adhesive Pads. Specification:Bit size: 35mm.  Additional Information:• Diameter (mm): 35