1. ‘New wheels usually have a smooth grinding face since the Borazon crystals and the surrounding bond are flush to the cutting surface.’.

2. ‘New wheels usually have a smooth grinding face since the Borazon crystals and the surrounding bond are flush to the cutting surface.’ ‘Diamond and Borazon mandrels are not a stock item.’ ‘In actual lapping tests, Borazon powder has polished the surface of a large diamond at the same rate as the surface was polished by diamond powder.’