Staubli PV-MS Open-end spanner set (2 pcs)

The Staubli PV-MS Open-end spanner set is a toolset that includes two open-end spanners. Stäubli is a reputable manufacturer known for producing high-quality tools and equipment. The plug connection can only be unlocked with the tool PV-MS. 

Open-end spanners, also known as open-end wrenches or spanners, are hand tools used to tighten or loosen nuts and bolts. They have a U-shaped opening with two parallel jaws that grip the fastener from two sides. The open ends allow for quick engagement with the fastener, making them particularly useful in tight spaces where other tools may not fit.

The PV-MS set you mentioned likely contains two open-end spanners of different sizes or dimensions. The specific sizes and dimensions of the spanners may vary depending on the set, so it's important to check the product details or packaging for the exact specifications.

Open-end spanners are commonly used in automotive repair, machinery maintenance, plumbing, and various other applications where fasteners need to be tightened or loosened. They are designed to fit specific nut and bolt sizes and provide a secure grip to apply torque effectively.