When using a concrete anchor you must use a hammer drill first to make a hole in the concrete.

• A. True
• B. False
• C. It depends
• D. Not specified

Answer: (A)

Creating a hole in concrete for an anchor relies on the masonry drilling action, which is provided by a hammer drill. The percussive motion helps the bit cut through the hard concrete, producing a clean, correctly sized hole with the proper depth. This ensures the anchor seats and grips properly once installed. Using a regular drill without hammer action can struggle to cut through the concrete, leading to an irregular or oversized hole, binding, and poor anchor performance. Therefore, for standard concrete anchors, using a hammer drill first to make the hole is the correct approach.