Even in difficult environments the highest accuracy can be achieved through the calloytool graphite tool with carbide and graphite processing, which is designed for our nano-diamond-coated tool geometries and special permutations easily. The calloytool graphite tool produces a very narrow production tolerance (tolerance ± 0 / - 0.01mm / concentricity maximum 0.003 mm / radius profile + / - 0.003 mm), reaching an impressive performance in terms of accuracy and service life. The graphite series includes corner ball Mills, the global head Mills, the coarse Mills and the drill bits, the thread cutter and the view, thus providing a diamond coating tool with the most comprehensive range of graphite processing.