The Vaunt X Vacuum brazed diamond hole saws are ideal for the toughest materials such as granite, marble, porcelain tiles, stone and brick!! The M14 fitting allows direct connection to an angle grinder and the high diamond content and vacuum brazing process ensures a permanent bond giving long-life and outstanding performance and accuracy, Bits from 6mm - 25mm are pre loaded with a wax to prolong the life of the bit and protect the work piece. The included guide helps keep your hole straight and true. 2x 6mm diamond drill bit 2x 8mm diamond drill bit 1x 18mm diamond drill bit 1x 25mm diamond drill bit 1x Hex to M14 adaptor and guide 1x 115m diamond blade 1x 115mm tile diamond blade 1x Carry CaseHigh diamond countVacuum brazed constructionSuitable for both wet and dry drillingIdeal even in the toughest materials