An obstruction wrench is a vital tool that helps during plumbing and repair work. It grips onto pipes and fasteners that are in hard-to-reach places and allows for easy adjustments or tightening. However, there are several other synonyms used instead of obstruction wrench like basin wrench, pipe wrench, adjustable wrench, and box-end wrench. A basin wrench, also known as a sink wrench or faucet wrench, is specifically designed for removing and installing fittings attached to basins and sinks. Meanwhile, a pipe wrench is ideal for gripping tapered pipes to loosen or tighten them. An adjustable wrench, also known as a crescent wrench or monkey wrench, is versatile and can be used on bolts and nuts of different sizes. Lastly, a box-end wrench, also known as a ring wrench or combination wrench, has a closed end and is great for removing bolts or nuts in tight spaces.