16-Piece Hole Saw Set, 6-50mm Diamond Drill Bits, Glass Drilling Tools, Hole Saw Set for Carbon Steel, Glass, Ceramic, Porcelain, Tile, Marble.

MATERIAL---The use of high-quality diamonds results in higher drilling performance and more precise holes. 16 DRILL BITS---The set contains 16 drill bits of various sizes: 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, 35 mm, 40 mm, 45 mm and 50 mm. VERSATILE APPLICATION---Ideal for glass, ceramics, marble and other hard and brittle materials. DURABLE---Diamond-coated drill bits are excellent for precise and uniform drilling in glass and other hard materials. NOTE---Reduce the speed and use water cooling to extend the life of the drill bits (dry drilling is strictly prohibited). Contents: 1 set of 16 diamond drill bits