General description The Tin Tinker and Tirpan 16-Piece Diamond Hole Saw Set is designed for precision drilling in various hard materials such as glass, ceramics, marble, and porcelain. This versatile set includes a range of sizes to meet different drilling needs. Technical specifications Material: High-quality alloy steel Sizes included: 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, 50 mm Usage Ideal for drilling precise and smooth holes in brittle and hard materials. Recommended to reduce drilling speed and use water cooling to extend the life of the drill bits (dry drilling is strictly prohibited). Other information