12pcs Diamond-Coated Drill Bit Set, Hole Saw Kit for Glass, Marble, Granite, Stone, Tiles, and Ceramics Ranging From 6 To 35 Mm - Manual Tools

Name: coarse sand brazing hole opener set Material: emery, cooling wax Features: It can be directly dried without adding water. Applicable models: hand drill, rechargeable drill and bench drill. Size: as the picture Usage: This product is suitable for the opening of glass, ceramic tile, marble, granite quartz stone, wall, concrete and other materials.