Lach Diamond (Grand Rapids, Mich.) has developed what it calls a diamond end mill with “multiple cut.” A multiple number of polycrystalline diamonds (PCD), more than 100 pieces on the working surface of the end mill, enable a gentle stock removal during machining glass fiber- or carbon fiber-reinforced plastic. The mill design (patent applied for) reportedly provides for disruption-free machining of delicate three-dimensional parts, with minimal noise.