4Pcs/Set Dry Diamond Drill Bits For Porcelain Granite Tile Glass Ceramics M

ITEM NAME:4Pcs/Set Dry Diamond Drill Bits For Porcelain Granite Tile Glass Ceramics M B4R5 4Pcs/Set Dry Diamond Drill Bits For Porcelain Granite Tile Glass Ceramics M B4R5 1. Use 45 degree positioning first, then vertical, drill by drilling and boring (convenient to remove chips and improve drilling speed) Material: Emery Hole diameter: 6mm, 8mm, 10mm, 12mm Size:60mm Color: Gold Used for glass, porcelain, stone,Floor tiles, marble and other materials,Drilling hard material drilling ï¼®ote: Do not need to add water for opening work, do not drill tempered glass Package Contents: 1 set * 4 drill bit