Core drills are used for many applications, either where the core needs to be preserved (the drilling apparatus used in obtaining a core sample is often referred to as a corer), or where drilling can be done more rapidly since much less material needs to be removed than with a standard bit. This is the reason that diamond-tipped core drills are commonly used in construction to create holes for pipes, manholes, and other large-diameter penetrations in concrete or stone. Core drilling offers a clean, accurate and fast way to drill holes. This technique is used for a number of different applications including but not limited to electrical, plumbing, phone line, HVAC and fire prevention equipment. Core drilling bits come in a range of sizes to accommodate any project. We carry 1” to 24” diameter core bits, these bits are made from diamond segments allowing us to cut through many materials including metal.