Which wrench type surrounds the fastener to contact multiple sides and is commonly offset?

Which wrench type surrounds the fastener to contact multiple sides and is commonly offset?

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

Answer: (A)

Box-end wrenches encircle the fastener, gripping it on multiple faces for a secure, slip-resistant turn. That surrounding, multi-face contact is key: it distributes the applied force around the head, reduces the chance of rounding corners, and lets you apply more torque without slipping. The common offset version adds a bend between the handle and the ring, giving extra clearance to reach fasteners that sit behind pipes, brackets, or other obstacles while still keeping the wrench in contact with the fastener. Open-end wrenches touch only two opposite faces and leave the sides of the head exposed, which makes slipping more likely in tight spaces. Crowfoot wrenches engage the fastener from the side but do not enclose the head; they’re useful in recessed or hard-to-reach spots but don’t provide the full encircling grip. Adjustable jaw wrenches grip two faces with a movable jaw, again not surrounding the head. The full encirclement with multi-face contact, often with an offset for clearance, is what makes the box-end wrench the best choice here.

Box-end wrenches encircle the fastener, gripping it on multiple faces for a secure, slip-resistant turn. That surrounding, multi-face contact is key: it distributes the applied force around the head, reduces the chance of rounding corners, and lets you apply more torque without slipping. The common offset version adds a bend between the handle and the ring, giving extra clearance to reach fasteners that sit behind pipes, brackets, or other obstacles while still keeping the wrench in contact with the fastener.

Open-end wrenches touch only two opposite faces and leave the sides of the head exposed, which makes slipping more likely in tight spaces. Crowfoot wrenches engage the fastener from the side but do not enclose the head; they’re useful in recessed or hard-to-reach spots but don’t provide the full encircling grip. Adjustable jaw wrenches grip two faces with a movable jaw, again not surrounding the head. The full encirclement with multi-face contact, often with an offset for clearance, is what makes the box-end wrench the best choice here.