In the machine manufacturing industry, machine parts are generally coated after taking their final shape. However, in some cases it may be necessary to reshape the parts obtained in this way with cutting operations. In such cases, the cutting method chosen is of great importance to carry out the process with minimum damage or without damaging to the coating layer. In this study, Co2B nanoparticles synthesized by mechanochemical method were coated to the surface of S235JRC (St37-2) material by CO2 laser. In order to determine the machinability characteristics of the coated layers, samples were cut with abrasive water jet, wire-electrical discharge machining, abrasive disc and laser, respectively. When the surface properties obtained by the cutting process are evaluated, it is determined that the abrasive disc cutting is the most suitable method for Co2B nanoparticle coated S235JRC (St37-2) materials. The characterization and metallographic investigations of the coating layers were carried out with X-Ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), optical microscope and micro hardness tester.