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Drilling concrete is primarily used to install rebar and wire mesh for foundation reinforcement, cable trays, and conduit. There are many different types of concrete bits used, depending on the application and size of the hole needed. For small holes, there are diamond-tipped masonry bits. For larger holes, there are rotary hammers and core bits, which come in different sizes.

In concrete work, coring drills make small cylindrical cores from drilled holes allowing technicians to test properties of surrounding materials without having to take additional samples. This form of testing is often called a mini-bore, and a wide range of bit sizes can be used depending on the size of the hole needed to extract the core sample. Some bits have replaceable carbide tips that extend their life and provide continuous performance throughout their working life under normal conditions. In normal usage, it takes approximately 1 minute per inch diameter for a handheld percussion drill to drill a 3-inch hole in the concrete.

Types of Concrete Drills Used

There are many different types of concrete bits that can be used to drill into concrete depending on the application and size required. The most common type of bit would be carbide-tipped coring bits or rotary hammer drills, which are generally used for smaller holes and where the concrete is either not too hard or has been previously drilled.

Water jet equipment is generally used for larger holes and harder concrete, which uses high-pressure, high-speed water to bore through the concrete. … Read the rest