Profile: NL Roper & Sons Ltd specializes in precision flat lapping, flat grinding and polishing. We serve industries including aerospace, medical, motorsport and defence. Flat lapping is the process that we use to hold tight tolerances, it can be used as a first off from the initial component molding and castings, this will give a datum for more conventional machining. The lapping process can also be used for intermediate or finishing processes. The polishing process follows on from the lapping process and further enhances the final finish for mechanical and cosmetic purposes for our customer requirements.