Diamond hole saw kit for cutting glass, tiles, ceramics, marble (8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 26 mm, 50 mm)

【High Quality】Our diamond drill bits are made of carbon steel. Their thick diamond coating on the upper part provides superior cutting resistance for optimal drilling results. They feature a fine finish and are highly wear-resistant.【Sizes】10 pieces (8/10/12/14/16/18/20/22/25/50 mm). These different sizes meet your needs and are helpful in various applications.【Wide Application】This diamond drill bit can drill a full circle in marble, ceramic, glass, tile, granite, slate, etc. It is ideal for drilling holes in glass, wood, tile, bottles, blocks, pots, ceramics, slate, granite, light-colored stone, etc.【Elegant Design】The diamond coating optimizes performance and maintains a sharper cutting edge than traditional carbide or bimetal hole saws. The side holes of the diamond hole saw allow for easy chip removal. Drilling【Caution】Can be used with a standard electric drill (not included). Please add water regularly when using diamond drill bits on glass or ceramics. Increased exposure to water can extend the life of the drill bit.