Descriptions:

• You may need one of these Glass and Tile Hollow Core Drill Bits Extractor Remover Tool and Hole Saws for glass, ceramics, porcelain, ceramic tile
• Hole saw / core drill style bits, Pack of 10
• 10 Sizes: 6mm, 8mm, 10mm, 14mm, 16mm, 18mm, 22mm, 35mm. 40mm, 50mm
• Application: Drill Glass, Tile Bottles, Blocks Jars, Fiberglass Porcelain Tile Ceramic, Slate Mable, Granite Light Stone
• SPEED KILLS: Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably
• Warnings: Not for use on Concrete or for depths beyond about 1/2"; Water is required for lubrication when drilling

Standard form & Use note

• Start your hole diagonally, make a round trace and then hold drill straight
• Always use lubrication (water), otherwise the diamond core drill will burn
• Low drill pressure and increased use of water lubrication will extend drill bit life considerably
• Not for use on Concrete or for depths beyond about 1/2"