Rio is a Taiwanese- based manufacturer established in 1 9 7 9 with over 16000 square meters of ground area factory.Our product portfolio focuses mainly on manual and impact socket sets, tool sets and various accessories including socket wrenches ranging from 1 / 4 "up to 3 - 1 / 2 ".Moreover, we also offer automotive repair tools, pneumatic tools, and garden tools.Over 90% of our products are made in- house which brings you the advantages of quality control, and price in the market.Rio holds several patents on designs of tools. We are in this field of professions for over 4 0 years and have done business with companies all over the world.