Abstract: An optical fiber cleaver (12) is disclosed having a first pivot arm (16) for securing a terminal end of an optical fiber (22), a second pivot arm (18) with a cutting tool (82) for scoring an outer surface of the optical fiber (22), and a flexible arm (24) extending outward from underneath the cutting tool (82). A V-shaped locating groove (28) extends in the flexible arm (24). A stress-relief recess (36) is located on the surface (26) of the flexible arm (24) in a location at which the cutting tool (82) scores the optical fiber (22). An arcuately-shaped recess (92) is formed into a lower surface (96) of the flexible arm (24) beneath the stress-relief recess (36) to focus the bend in the optical fiber (22) where the fiber (22) is scored and the cleave is to occur. A flexible arm stop (90) is provided to control the minimum radius of the bend in the flexible arm (24) and the minimum radius of bend induced in the optical fiber (22) at the cleave.