Honeycomb breadboards from Holmarc use magnetic stainless steel (SS410 series) as top skin. Core of the breadboard is honeycomb structure made from aluminium. Thickness of these breadboards generally vary between 60 mm and 100 mm. Honeycomb breadboards can be placed on any working tables to quickly build optical working surfaces which will add the convenience of tapped holes grid in addition to the rigidity and stability of honeycomb structure. These can as well be used to build extra elevated working surfaces on optical tables. With suitable angle brackets and clamps, vertical working surfaces can also be created.