Which tool is an L-shaped tool used to work with hex screws?

• A. Hex wrench
• B. Crow foot wrench
• C. Box end wrench
• D. Open end wrench

Answer: (A)

An L-shaped tool used for hex screws is a hex wrench (Allen wrench) because it has a hexagonal tip that fits into the six-sided recess inside the screw head. The long leg provides leverage to turn the screw, while the short leg can help reach tight spots. The other wrenches shown are designed for external fasteners: a crowfoot wrench works with external flats on nuts when attached to a ratchet, a box-end wrench is a closed loop that fits around external hex heads, and an open-end wrench has a U-shaped opening for external fastener surfaces. None of those are meant for internal hex sockets, so they won’t properly engage hex screws.