OTC is a one of the largest manufacturers and suppliers of vehicle diagnostic instruments, general purpose tools, automotive fuel system maintenance, hydraulic components, shop equipment and heavy duty tools. While founded in 1925, it is owned by the multi national company SPX Corporation.
While home owners and do-it-yourselfers are probably not aware of OTC Tools, for professional contractors and those in light and heavy industries, OTC is a common and trusted brand.
OTC, unfortunately is not sold through retail outlets, instead it is sold through a network of authorized aftermarket distributors. These distributors serve large car, truck, agricultural, construction and marine manufacturers usually on an OEM basis. OTC is known for top-notch quality and durability. While based in the US, operating units can be found around the world, specifically in Europe and Japan.