Cold-forged Chrome Vanadium steel socket. Hardened and tempered for added strength. Chrome plated with a fully polished mirror finish. WallDrive® socket configuration. Knurled ring for extra grip with oily fingers.11mm 3/8Sq Drive Fully Polished WallDrive® Socket• Cold-forged Chrome Vanadium steel socket.• Hardened and tempered for added strength.• Chrome plated with a fully polished finish.• WallDrive® socket configuration.• Knurled ring for extra grip with oily fingers. • Lifetime guarantee*.• Model No. SP3811Model No: SP3811:Brand: Premier:Depth: Standard:Drive: 3/8Sq:Material: Chrome Vanadium:Nett Weight: 0.02kg:Size: 11mm:PTDSEASP3811