The Vevor 4-1/2" wet diamond core drill bit is designed for drilling reinforced concrete, brick, concrete, and foam brick with smooth, accurate performance. It features a 1-1/4 in-7 universal thread for compatibility with standard hand drills and stand drills. Built from carbon steel with high-precision laser welding and diamond-grit teeth, it is made for durability during demanding wet-cutting applications. The wet-use design helps reduce heat buildup, lower friction, and extend service life. This bit is suited for construction, plumbing, air conditioning installation, and similar jobsite work.