Vevor's Diamond Core Drilling Machine can perform wet drilling and is suitable for a wide range of applications including plumbing, electrical, HVAC, and construction projects. It can tackle a variety of materials including concrete, brick, marble, and stone. This drill has a quick-insert water pipe connector for wet drilling, and the steel forged output shaft is rustproof for long-lasting durability. This drill accommodates up to 10" drill bits. The drilling bit is not included.