Description:10pcs Diamond Hole Saw Drill Bit Set 3mm-13mm Tile Ceramic Glass Porcelain Marble Hole Saw Specification:Material: SteelDiamond Grit: 100 (Medium)Hole Saw Diameters:3/32"， 1/8"， 5/32"， 13/64"， 1/4"， 9/32"， 5/16"， 11/32"， 3/8"， 7/16"(3mm， 4mm， 5mm， 6mm， 7mm， 8mm， 9mm， 10mm， 11mm， 13mm)Quantity: 10pcs  Features:These Diamond Bits are Capable of Drilling into Extremely Hard Materials Such as Stone and Glass. Use With any Drill or Power Tool That Will Accept a 1/8" Diameter Shank.Great for Home， Hobby， Craft， Construction， etc.Materials and only needs water for lubrication.This diamond coated core drill bit removes a complete circle from glass， marble， tiles，granite， ceramic or other. Use note:1. Start your hole diagonally， make a round trace and then hold drill straight.2. Always use lubrication (water)， otherwise the diamond core drill will burn. Package Included:1Set x Diamond Hole Saw (10pcs) More Details: