Which type of tool uses a woven nylon strap to turn polished pipe and fittings without causing damage?

A strap wrench is specifically designed to handle polished pipes and fittings without causing scratches or damage. The woven nylon strap wraps around the object and allows the user to apply torque by turning the handle. This design minimizes the risk of marring the surface, making it ideal for applications where aesthetics are important, such as in decorative plumbing fixtures.

In contrast, a pipe wrench is typically made of metal teeth that grip the pipe, potentially causing dents or scratches, especially on polished surfaces. An adjustable wrench, while versatile, also has a hard jaw that could mar finishes. Meanwhile, a clamp wrench generally applies clamping force and is not designed primarily for turning fittings without damage. The unique feature of the strap wrench with its non-marring strap is what makes it the correct choice for working with delicate pipes and fittings.