The unsustainability of imported goods to the economy of Nigeria as well as the need for environmental waste management call for more investment in locally sourced raw materials and biodegradable recyclable wastes as raw material substitutes in producing tools for industrial and domestic use. This work seeks to address the recycling of agricultural wastes for producing tools used for abrasive machining processes. A comparative analysis of abrasive material made from two locally sourced materials, periwinkle and palm kernel shells were carried out to investigate their replacements for foreign...