Dry Diamond Drill Set, BRSCHNITT 5pcs 3/5 Inch (14mm) Diamond Hole Saw Core Drill Bit for Porcelain Tile Ceramic Stone - ShopVlot

Size -- 5pcs/pack,3/5"(14mm), diamond height 10mm, total length 80mm, hex shank diamond core drill Wide Applications -- Diamond core bits are great worked for dry drill holes by hard porcelain tiles, ceramics, bathroom tiles, granite and marble, masonry, concrete, glass, hard plastic with ease. The use of water can extend its service life Super Quality Raw Material -- Using vacuum soldered technology, which increases resistance to temperature and friction, to better attach the diamond part