Nowadays the polishing products for finishing procedures have a high cost in the finishing process, once these products are imported or made by synthetic diamond. This study shows the polishing effects of several of low cost abrasives ceramic powders available on the national market. The material used in this study were silicon carbide and aluminum oxide, the variables of particle diameter and surface roughness were analyzed. The test samples materials used in the experiments were aluminum, carbon steel 1020, stainless steel 304 and polycarbonate. Finally, a comparative evaluation was showed using metallographic polishers already existent on the market.