RUBI 50996 drill bit Drill bit set 6 pc(s)The DRYGRES kits are the most economical solution for users who need to carry out dry cut drilling, with different diameters and in any type of ceramic tile. The DRYGRES range of diamond drill bits are recommended for drilling of all types of ceramic tiles, especially porcelain tiles, and other wall materials such as marble and granite. In the DRYGRES range of drill bits, RUBI has used VACUUM BRAZED technology, which increases resistance to