Milwaukee 4 pc. Tile and Natural Stone Drill Bit Set FAF3816SWIZFOS which means they're highly resistant

which means they're highly resistant to puncture

or fiberglass material

Will not load or glaze

Adjustable Set Screw For Preferred Head Tension

hex bits and the small-profile quick release collar allows for easy one-handed bit tip changes

Milwaukee 4 pc. Tile and Natural Stone Drill Bit Set FAF3816SWIZFOS which means they're highly resistantThe MILWAUKEE 1 2" Tile and Natural Stone Drill Bit delivers up to 2x longer life in granite, stone, ceramic tile, and marble. Hammer mode capability provides faster drilling speeds when drilling natural stone tiles. Equipped with an aggressive 8 grind carbide head, these bits deliver up to 20% faster drilling. The bit's reinforced tip protects the carbide head, providing the durability needed for use in hammer drill mode. These Milwaukee natrual