The Marcrist Speed Tile X 8mm set is a versatile drilling set which can be used on a range of materials. From natural stone to wood and aluminium to plasterboard this drill set will produce the highest quality results. As a result of the self-centering tip and flat flute the ceramic drill bit leaves clean precise holes. This kit also contains a dry diamond tile bit which can be used for between 30-70 holes in grade 5 porcelian tiles. This is due to the self lubricating technology along with the vacuum deposited multi layered diamond, increasing the drill bits durability greatly. The self-cooling and self-sharpening capabilities make this diamond tipped drill bit reliable when leavinging clean precise holes in any tile. The product has a wax coolant system which absorbs the heat which melts and begins the lubrication process, improving the life of the bit and speed of drilling. Specification • Shank size: 1/4" • Diameter: 8mm • Material: Steel • Hex accesory fitting style Suitable For: