Photo: Tom Schierlitz What it is: CS Unitec Eibenstock Diamond Core Drill What it's used for: Puncturing steel-reinforced concrete. A diamond core drill might be the best device for draining a ...

In addition, the Core Drill has the power to core 6-in. holes in reinforced concrete, adding productivity whether handheld or used on a stand. The freedom from cords adds more safety and productivity.

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Featuring a bit capacity of up to 6¼ in. maximum and a minimum bit size of 5 / 16 in., the DD 110-W hand-held core drill offers both wet and dry coring capability in reinforced concrete and masonry.