AccuFiber collimators accept industry-standard fiber optic beam delivery cables. Standard re-collimating lenses range from 60 mm to 125 mm focal lengths; however, shorter and longer versions can also be made available. The assemblies include fine focus adjustment for exact location of the lens to the end of the fiber, or to create a purposely de-collimated beam for specific applications or focus spot locations. The assemblies are readily adaptable to Laser Mechanisms' full range of cutting, welding and height sensing processing heads.