What type of wrench is designed to operate between obstructions with limited handle swing?

The type of wrench designed to operate between obstructions with limited handle swing is the box end wrench. This wrench features a closed loop at one end that fits over nut or bolt heads, which allows for use in tight spaces where there is not enough room for the full swing of a traditional handle. The design of the box end provides greater surface contact with the fastener, reducing the risk of rounding and allowing for better torque application.

In situations where space constraints are a concern, using a box end wrench is advantageous as it provides a more secure grip and the ability to apply significant force even with limited movement, making it especially useful in cramped working conditions typical in aviation maintenance and repair.