9PCS Dry Diamond Drill Bits Set, Round Shank 1/4, 5/16, 3/8, 1/2 inch Masonry Drill Bits Set for Porcelain Tile Ceramic Glass Stone Granite Marble, Core Drill Bits for Hard Materials(not for Wood).

😃[Complete Diamond Drill Bit Set] This 9-piece diamond drill bit set includes 1/4"x2, 5/16"x2, 3/8"x2, 1/2" x1 and 1/4"x2 hex shanks for attachment. For all your drilling needs including glass, tile, ceramic, stone and masonry.
👍[Dry Drilling Design] The inside of the vacuum brazed diamond drill bit is filled with cooling wax lubricant. The wax melts during the drilling process, which helps dissipate heat, cool and lubricate the drill bit. The cooling wax can be used with water after use to prevent diamond loss and extend drill bit life.
👍[High-quality Diamond Drill Bits] The diamond drill bit is made of carbide and top-grade diamond. As a professional tile drill bit and glass drill bit, it can achieve fast and smooth cutting, be more efficient and durable, and not easily deformed.
👍[Clean And Precise Drilling] Each drill bit is designed with vacuum-brazed diamond technology and a special U-shaped groove tooth profile to quickly remove debris. Equipped with a 1/4" quick change hex shank for better chuck grip and get clean and precise drilling, compatible with most machines.
😃[Wide Application] The round shank design of the diamond tipped drill bit is compatible with the most popular electric drills, angle grinders and bench drills. Small size, easy to carry and use. Suitable for drilling clean holes in hard materials, especially hard tiles, ceramics, bathroom tiles, granite and marble, masonry, concrete, glass, hard plastics , etc.(not suitable for wood)

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