3 otters 15PCS Diamond Hole Saw Kit, Glass Drill Bits for Drilling Holes in Glass, Bottles, Marble, Granite Stone, Tile Cutting 0.24 Inch - 2 Inch（6mm - 50mm

High Quality DrillEach hole is treated with smooth and accurate surface treatment,and the top oh the hole is thickened to achieve excellent cutting strength Tile Hole Saw 15 Sizes 6/ 8/ 10/ 12/ 14/ 16/ 18/ 20/ 22/ 25/ 26/ 28/ 30/ 40/ 50 mmto meet various demands Wide UsageUsed on Drill Glass,Wood,Tile Bottles,Blocks Jars, Ceramic,Slate Mable, Granite Light Stone, and other hard surfaces AttentionPlease keep adding water when the diamond drill bits are working on the glass or ceramics.low drill pressure and increased use of water lubrication will extend drill bit life. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions., Weight: 0.220462262 pounds, Manufacturer: JOHOUSE