The Fiber-Duct fiber-optic cable routing system now comes with pre-drilled assembly holes. According to the company, fittings now include pre-drilled 8-mm assembly holes as a standard feature on al 2" and 4" system fittings, with the exception of end cap parts. Pre-drilled holes are available as an option on 6-ft. lengths of duct. It is claimed that this new feature will bring substantial savings in installation time and costs.