SAS Research and Development’s Ultimate Fiberscope for SWAT and Special Ops is manufactured entirely in the United States. This 8.5mm-diameter scope has a channel through which various tools can be passed, including a microphone and magnetic lifting and cutting tools. The scope is available either separately or as part of a master kit of inspection equipment that includes a video camera with USB, infrared illumination, and various accessories all contained in one transport case. Other fiberscopes are available that offer 20 feet or more of working length.