A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core.
Core drills used in metal are called annular cutters. Core drills used for concrete are generally called Diamond Core Drills and are water cooled. For drilling masonry, carbide core drills can be used.
Diamond core drilling is a high-speed, high-production method of drilling in concrete, stone, asphalt or masonry structures. It is fast, safe, quiet and does not cause impact or vibration damage to the immediate surrounding structure. Diamond core drilling minimizes spalling, eliminates fractures and doesn’t transfer vibrations to the surrounding structure. The clean, straight openings require no patching or other cosmetic repair and allow the next operation to be installed or carried out without further delay. Core drills cut easily through rebar, allowing the holes to be placed wherever it is most suitable. Holes of almost any diameter up to 60 inches are easily drilled to make openings for plumbing, electrical and HVAC installations.
Diamond core drilling is so called because it uses a ‘diamond bit’. This drill bit is composed of group of small, industrial grade diamonds set into a metallic, soft matrix. As the ground is drilled, this matrix will wear away and expose more diamonds.
Wet Core Bits
Drilling of concrete, masonry and brick, including concrete with soft to hard aggregate and light to medium steel reinforcing, also effective on granite, marble and stone. Dry Bits are for drilling brick and lightweight block or concrete block materials. Sizes available from 3/8″ to 14″ in diameter.
Dry Core Bits
Drill dry through block and brick in seconds. No water needed. Sizes available from 1″ to 6″ in diameter.
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Including a full line of Made in the USA Diamond Core bits.
USA SQ2 Wet Core Bits are designed with premium grade diamonds for maximum cutting performance and long product life for wet use applications. Premium Concrete Core Bits are laser welded and have a core depth of 14”.
These core bits are made here in the USA and specked out for long life and performance.
Diamond Core Bits are used for core drilling concrete, green concrete, brick, hard brick, clay pavers, pavers, asphalt and field stones. Diamond Core Drill Bits come laser welded. Diamond Core Bits are designed with premium grade diamonds for superior cutting performance and longevity. Core bits are engineered with special barrel vents to allow easy removal of cutting debris.