In this study, nano-WC/Co powder was synthesized using a method termed as the integrated mechanical and thermal activation (IMTA) process. The nano-powder was sintered at different temperatures and times in an induction furnace. To further enhance the density of sintered bodies, sinter-forging was investigated using Gleeble 3600. Microstructure, Vickers hardness and indentation toughness were characterized for the WC/Co bodies sintered under different conditions. It has been found that thin WC platelet grain morphology can be obtained with the controlled growth of nano-WC grains, and this thin WC platelet geometry offers simultaneous enhancements in both hardness and toughness. It should be noted that these enhancements are achieved without any catalysts, which underscores the effectiveness of nanoengineering and mechanical activation as well as the opportunity for future improvements in the future.