Abstract: Dual bladed apparatus for cleaving optical fibers is provided. The apparatus includes a housing having an opening therein for receiving an optical fiber, with or without insulation thereon and whether or not contained within a ferrule, the apparatus having dual, opposing, cooperatively operable cutting means reciprocally moveable transversely to the fiber, which cutters are positioned in adjacent proximity to the exit of the opening. On insertion of a fiber through the opening and upon actuation of the cutters, the fiber is cleaved. Fibers having diameters up to 3 millimeters can be cleaved, and angled cleaves are achievable.