Implemental Addison Masonry Drill Bits for Concrete Brick Marble Tiles (1/4 Inch) 2Pcs Drill Bits

This concrete drill bit set is suitable for most general drill, electric drill, hand drill and bench drill, strong tungsten carbide drill bit tip. This masonry drill bit can easily penetrate various material like glass, ceramic tile, marble, wood, ceramic, stone, concrete, brick, hard plastic, cement, etc. Masonry drill bit set, ideal for drilling fastener holes in bathroom tiles, or wall mirrors. Reduces breakout, please cooling with water and control the speed when drilling.