Demyelinating disease. A demyelinating disease is any disease of the nervous system in which the myelin sheath of neurons is damaged. This damage impairs the conduction of signals in the affected nerves. In turn, the reduction in conduction ability causes deficiency in sensation, movement, cognition, or other functions depending on which nerves are involved.
For other uses, see Reamer (disambiguation). A reamer is a type of rotary cutting tool used in metalworking. Precision reamers are designed to enlarge the size of a previously formed hole by a small amount but with a high degree of accuracy to leave smooth sides.
91mm Reamer, no sewing-eye. The Reamer is typically used for punching holes in lighter material such as Leather or Canvas, and drilling (or reaming) holes into materials like wood. The tool is tapered so as with any Reamer it can be used to enlarge a whole by twisting and scraping the edges of the opening. The sewing eye can be used to push/pull a heavy thread through Canvas, Nylon, or any material the tool can penetrate. The Sewing Eye was first added to the Reamer in 1985. The Reamer has a hardness rating of RC 52, but it is not known if this applies to all versions if the tool. There are currently three versions of the tool in production. The basic variation is with, or without, a sewing eye. The third is a version included on the Alox scaled knives.