® ® Diamond and CBN Grinding Wheels shaped diamond dressers – multi-point dressing tools Economical grinding of carbide, HSS, hardened steels and other hard materials, such as ceramics, PCD etc. LACH diamond and CBN grinding wheels and pins are available in a variety of bonding materials, e.g. resin, metal, ceramics and electroplated bonds for conventional tool grinding and tool production up to high speed grinding. Dressing of grinding wheels. Standard products available from stock.