Jabro end cutters by Seco Tools, designed especially for milling composites, are produced in solid tungsten carbide (WC) and the cutting tip vacuum deposition coated with synthetic diamond. Image by Seco Tools.

Diamond coated cutting mill. Synthetic diamond is chemically, physically and visually identical to natural diamond. One of the main advantages is that it can be produced in a range of formats. Adding a thin-film diamond coating to cutting tools makes them extremely hard, which decreases wear and improves cutting performance.