Flat key for a cylinder lock has profiles cut into the narrow sides by a cylindrical cutter to maintain the straight narrow side contour line with a variety of profilings

摘要

The key (1), to be used in the key channel in the core of a cylinder lock housing, has profiles (5) to sort the lock pins aligned across the key axis. The profiles (5), with flat walls (8), are in a longitudinal groove structure in the flat key, shaped by a cylindrical cutter, to give a variety of profilings.