Meccion and Tile Drill Bit Cut staring circles holes with these tools. for glass, instrumentality tile, wood, instrumentality, stone, solid, brick, etc.. This drill bit kit with double over slot drilling design to drill faster than early drill bit. These drill bit with carbide as a material and improve durability. This design effectively sawdust and chips and helps prevent plugs from becoming cragfast in each drill. Package Include : 5-Piece and Tile Drill Bit 6 mm x 2 8 mm x 1 10 mm x 1 12 mm x 1 .