This set, containing 13 pieces including sockets from 5.5 to 14mm, is ideal when working on protruding bolts or studs with long threads. The sockets are tubular and are held in the ratchet by an external hex, allowing any threaded portion of a bolt or stud to pass through their centre. The reversible ratchet features a non-slip neoprene grip. A 55mm extension also features the tubular design and the set is also supplied with an adaptor to take standard 1/4" square drive sockets. Due to its small headroom the right tool also to access tight spaces! Supplied in a powder coated steel box.