A set of six crows foot wrenches, in 10mm, 12mm, 13mm, 14mm, 17mm and 19mm sizes, suitable for use on; compression joint fittings, brake pipes, hydraulic pipes and wired sensors. Designed for use with a 3/8" square drive extension bar, they feature a spring-loaded quick snap design, allowing them to stay in the open position when placing around the pipe or wiring, together with a ratcheting action making them ideal for use in confined areas.