The MAC Tools USA 3/8" Drive 3" Long Wobble Extension X3EW is a high-quality hand tool designed for automotive use. Made by the reputable brand Mac Tools, this extension features a standard socket type and SAE system of measurement. The chrome surface finish ensures durability, and the single item set includes a 3" long wobble extension for added flexibility in tight spaces. Made in the United States, this specialty drive type tool is a valuable addition to any mechanic's toolbox.