Sealey Magnetic Spark Plug Socket Set 3/8"Sq Drive 4pc Features: Forged, Chrome Vanadium steel, 3/8"Sq drive WallDrive® sockets with magnetic plug retention, external hex and polished chrome finish. Set includes thin walled 16mm socket, for where clearance is tight. Technical Details: • Forged, Chrome Vanadium steel, 3/8"Sq drive WallDrive® sockets, polished chrome finish. • Magnetic plug retention and external hex. • Sockets: 14, 16, 21mm, 16mm Thin-wall. • Includes thin walled 16mm socket, for where clearance is tight. • Lifetime guarantee*. • Model No. AK65561 • Model No. AK65561 Additional Information: • Forged, Chrome Vanadium steel, 3/8"Sq drive WallDrive® sockets with magnetic plug retention, external hex and polished chrome finish. • Sockets: 14, 16, 21mm, 16mm Thin-wall. • Set includes thin walled 16mm socket, for where clearance is tight. • Lifetime guarantee*.