Set of 6 multi-function ceramic tile drill bits for concrete, glass brick, cement, plastic, wood, tile, carbide, size 6, 6, 8, 10, 12 mm< br />Features: ▪ Made of YG6X carbide, heat resistant. wear, durable. ▪ Drill exactly where you want it. you want No need to worry about slipping. double flute helps better remove scale and debris, creating a clean and smooth hole. ▪ Diameter 6mm, 8mm, 10mm, 12mm, which can meet your most household requirements and industry. Specification: Color: Gold Material: YG6X Carbide Diameter: 6mm/8mm/ 10mm/12mm Drilling range: tiles, wood, plastic, glass brick, iron iron, shells, etc. Tile Drill Bit Please note: When the drill bit works for a long time, the temperature will be higher than 1000°C, so you need to use water to cool it down when you use it, which may cause the the drill works better.