• One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. • Cold-forged Chrome Vanadium steel sockets, hardened and tempered for added strength. • Fully polished chrome finish for corrosion resistance and knurled ring for extra grip with oily fingers. • All sockets include WallDrive® configuration giving an additional 30% more torque handling power than traditional sockets. • Sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm. • Supplied on socket rail. • Lifetime guarantee*.