Manufactured from Chrome Vanadium steel, hardened, tempered and with a phosphate finish for added corrosion resistance. Deep WallDrive® sockets allow a transfer of up to 30% more torque to the fixing. Colour-coded rings for fast identification. Supplied in storage case. Features & Benefits:Manufactured from Chrome Vanadium steel, hardened, tempered and with a phosphate finish for added corrosion resistance.Deep 6-point WallDrive® sockets allows a transfer of up to 30% more torque to the fixing.Colour-coded rings for fast identification.Sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24, 27, 30, 32mm.Supplied in storage case.Lifetime Guarantee*.Model No. AK5818M Specifications: Model No AK5818M Brand: Premier Quantity of Sockets: 16 Type: 1/2"Sq Drive - Deep Contents: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24, 27, 30, 32mm. Nett Weight: 4.4kg