Glass Drill BitThese diamond drill bits are made of industrial grade carbon steel with nickel-plated coated body to resist corrosion. Fine workmanship and super wear-resistant, sharp
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
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.
