Bosch EXPERT HEX-9 Hard Ceramic Drill Bit Set 5 Piece

Lasts up to 10x longer than standard tile drill bit.
Extremely durable drill bit tip with Bosch Carbide Technology.
Ideal for drilling holes in hard tiles ie porcelain, without the need for cooling Drills comfortably in tiles up to a hardness of PEI 5 Use in 1st gear
Hex shank for maximum power transfer in standard three-jaw drills and hexagonal screwdriver chucks.
Use in 1st gear.
Diameter mm: 4.0; 5.0; 6.0; 8.0; 10.0
Total length mm: 90