2.Dry diamond core drill bit can be used on most angle grinders (5/8-11 thread) directly;
3.Vacuum brazed diamond hole saw is more heavy duty and wear resistant than electroplated diamond bit, providing high efficiency, cuts faster, durable and sturdy;
4.Tile hole saw have special U-groove tooth shape and chip removal design to aid debris removal and cooling;
5.Diamond core bits are worked great for dry drilling holes through porcelain tile, ceramics, bathroom tile,marble,glass,granite,stone,masonry, brick with ease