Heat treated, drop-forged Chrome Vanadium steel sockets and accessories with a fully polished mirror finish. Covers sizes from 4 to 14mm in both standard and deep. Features specially machined flutes in the walls of the socket which enable use on up to 85% rounded fasteners. This not only provides added strength but also prevents damage to worn or rusted fixings. Includes contents map displayed inside the lid. Supplied in storage case. SEALEY PREMIER - One of a comprehensive range of Premier Hand Tools, suitable for daily and professional use. DURABILITY - Heat-treated, drop-forged Chrome Vanadium sockets and accessories with a fully polished mirror finish. LOCK-ON - Features specially machined flutes in the walls of the socket which enable use on up to 85% rounded fasteners. This not only provides added strength but also prevents damage to worn or rusted fixings. 72-TOOTH RATCHET Enables precise tightening in 5 increments. Features flip reverse with quick-release button for easy