Which statement best describes an open end wrench?

• A. It has two open ends.
• B. It has a box end on each side.
• C. It has a ratcheting mechanism.
• D. It has one open end and one box end.

Answer: (A)

An open end wrench is defined by having two open, U-shaped jaws that grip the sides of a bolt or nut, allowing quick placement from the side and access in tight spaces. That description—two open ends—best captures what distinguishes this tool. A box-end wrench has enclosed rings around the fastener, not open jaws. A ratcheting mechanism is a feature of some wrenches but not what defines an open-end wrench. And a tool with one open end and one box end is a combination wrench, not a pure open-end wrench.