金刚石具有硬度和导热性，是一种优良的刀具材料。使用高温高压（HTHP）方法合成的PCD金刚石制作成工具的成本很高。使用化学气相沉积（CVD）方法可以在工具上合成金刚石涂层，但附着力差限制了其可接受性。QQC在金刚石合成方面的突破性进展是使用多路激光，将二氧化碳从二氧化碳中分离出来，直接合成成冶金结合的金刚石。由此产生的涂层具有优异的附着力，该工艺适用于多种基材，包括碳化钨和高速钢刀具。

Diamond has hardness and thermal conductivity which make it an excellent material for cutting tools. PCD diamond, synthesized using the high temperature, high pressure (HTHP) method is expensive to fabricate into tools. Diamond coatings can be synthesized onto tools using the chemical vapor deposition (CVD) method, but the poor adhesion has limited its acceptance. QQC's breakthrough development in diamond synthesis uses multiplexed lasers, dissociating carbon from carbon dioxide and directly synthesizing it into metallurgically bonded diamond. The resulting coating has excellent adhesion, and the process works on a wide variety of substrates, including tungsten carbide and HSS tools.