expert quality, socket set containing both draper expert vortex & conventional sockets. manufactured from chrome vanadium steel hardened, tempered, chrome plated & polished for corrosion protection. the unique hollow socket technology of the draper expert vortex ratchet & sockets is ideal for long fixings. the sockets are edge driven. this allows a fixing to pass through the head & avoid the depth restriction of conventional sockets & ratchets. packed in blow mould carrying case & display sleeve.