Description:6pcs 3-10mm Carbide Drill Bit Set for Wall Tile Ceramic GlassSpecification:          Material       Carbide           Diameter        3mm、 4mm、 5mm、 6mm、 8mm、 10mm           Quantity       6pcs        Features: Carbide tipped drills with a degree of hardness. Over HRC-90. Suited for drilling into glass、 mirrors、 tiles、 ceramics、 porcelain.  Package Included:6 X DrillMore Details: